My Finder menu bar and screen is flashing. Is this a virus?

The icons (file folders, Hard Drive icon, etc) on my desktop and the Finder menu bar started flashing off and on, last night. I can use Mail, Safari, iPhoto, iTunes, etc. from the Dock, but it is a challenge to click on Airport on the menu bar to get on line. I shut the computer down, removed-then reinstalled the battery and restarted the computer, but the flashing began right away, again. I had exported some photos to desktop which landed atop the Hard Drive icon. I move them as quickly as I can, but the screen flashes and puts them back, so I can't access the Hard Drive. I had viewed a QT movie someone sent me earlier in the evening and also clicked on several photos in MySpace. I wonder if one of those could have done it.

Just starting up with the install disk won't erase anything.
Shut down the computer.
Restart the computer and at the same time insert disk1 into the slot while holding down the option key.
This should bring up a screen showing two different startup options.
Pick your disk that you inserted.
You will eventually get a screen with a window opened showing the Mac install file. Don't use this.
Up top on the menu bar should be a pull down menu that will give you an option of disk utilities.
Use the repair permissions function and disk repair function. These will not erase anything.
The reason I'm not clear on the position of the menus is that I'm at work on a peecee.
Try this and let us know..

Similar Messages

Macbook pro.minimize button is inactive. Finder menu bar and dock won't appear when firefox is open. not occuring with safari. have to click on desktop to get Finder menu bar and dock to reappear. think happens after update of something. How do I fix it?

When i open firefox it opens up full screen (as it always has) but now the minimize button is grey (not yellow) and inactive so i can only open (green button) or close (red button) my firefox window. I can still make it smaller by dragging the bottom right corner but i can't minimize it to my dock or anything. Also, I have my dock set to auto show/hide when i roll my pointer over it. Now, whenever Firefox is open (no matter what size the window is) the Finder menu bar (with the time, battery power, etc) does not show up (which it always has before) and my dock won't auto appear when i roll my pointer over it.

Can you check this issue on Firefox 9?
* getfirefox.com

My firefox home page takes up the whole page of my screen. I want to get back my toolbar & menu bar. How do I do this?

I somehow made it full screen with a click

Hey,
As ideato suggested, F11 will do the job on Windows.
But that only brings you back from the full screen mode.
If you wish to get back your toolbar and menu bar, left click
on Firefox.
There you will find Options.
When you click on options, you will find Menu Bar and Navigation Toolbar.
Simply selecting them will do the job (if they are not already selected).

My screen is magnified on full and i can't find the menu bar and the doc.

My screen is mangified on full and i can't find the menu bar and the dock.

Hello, Melorw44.
Try pressing the <esc> (Escape) key.
If <esc> doesn't clear your full screen, restart your Mac. When you launch Safari after the restart, the normal sized window should open.
BTW, three finger double tap applies to trackpads. From your responses, I infer that you are not using a trackpad. However, if you are using a wireless mouse (or other wireless pointing device), low batteries in the device might be causing your inability to control your view.
Message was edited by: EZ Jim
Mac OSX 10.8.2

When safari is in full screen mode and I move the mouse to the top of the screen to bring up the menu bar and the bookmark bar, it does nothing. Is anyone else having this issue?

When safari is in full screen mode and I move the mouse to the top of the screen to bring up the menu bar and the bookmark bar, it does nothing. Is anyone else having this issue?
Thanks

I just tested that since I hardly ever use full screen mode, this was the first time since I upgraded to Mountain Lion, and it worked fine for me.
Try shutting Safari down and see if that changes anything.
If that doesn't change anything, try shutting down and then rebooting.
Allan

When I maximize my screen on my Mac it hides the menu bar and the typed tool bar at the top of the screen - how do i fix this

When I maximize the screen on my Mac Book Pro it hides the menu bar and the typed tool bar at the top of the screen as well. How do I undo this?

10.7 "Full Screen" is a feature imported from IOS, the land of tiny screens.
To use a larger window on a REAL computer, adjust the Window's size to suit your needs. Do not use "Full Screen".

I accidently Hid The menue bar and Navigation bar and only left with the bookmarks...I tried right click but cant find the right spot for the box to pop up to check menue bar, i also tried pressing alt and it did nothing. what else can i do? I need this a

I was trying to hide just my clock for the history and the menu bar(file,edit all that), I dont know what i clicked but it got rid of everything except for the bookmark tabs. I know if you right click on the menu bar you can fix it, but since there is no menu bar anymore, this isnt working. i looked up how to do it in the forum found out you can press alt and do it that way, maybe i didnt do right, but that didnt work either.please help me!
== This happened ==
Just once or twice
== I tried to hide my history and menu bar, and it jost got rid of it all. ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; OfficeLiveConnector.1.3; OfficeLivePatch.0.0)

If that still doesn't work then see http://kb.mozillazine.org/Corrupt_localstore.rdf
(caution: do not delete the localstore.rdf file in the Firefox program installation folder)
Note:
Deleting the file [http://kb.mozillazine.org/localstore.rdf localstore.rdf] will reset the customizations of the toolbars to the defaults.
You can rename ''localstore.rdf'' to '''localstore.rdf.sav''' to test if that solves it.
Then you can restore the customization by copying ''localstore.rdf.sav'' to ''localstore.rdf'' if it didn't work.
Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]

I was working on my spry menu bar and now my sidebar1 photo moves with the menu bar?

I was working on my spry menu bar, and getting really far with it thanks to GRAMPS, and all of a sudden I wanted to put padding of 30px top and 30 px bottom on the sidebar1 photo in the container and now all of a sudden the home.jpg photo in the sidebar moves when you hover over the menu bar.
I can noit for the life of me figure out what changed and somehow was so excited about my spry menu bar working that I did not save the most recent working page. Can anybody look at this with me and let me know what changed to mess the page up on me.
Thanks a million.
Ted
site is located here http://www.subzerorefrigeration.com
None of the links are working I have just been playing with the spy menu for weeks. I finally figured it out and do not belive the error is in the spry style sheets.
Here is the code for my page. I know I am working with a template. I really do not want to start over if a <div> tag is missing.
Any other suggestions would be appreciated.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Sub Zero Refrigeration Heating and Air Conditioning in Midlothian Illinois</title>
<style type="text/css">

</style>
<script src="SpryAssets/SpryMenuBar.js" type="text/javascript"></script>
<script src="Scripts/swfobject_modified.js" type="text/javascript"></script>
<link href="SpryAssets/SpryMenuBarHorizontal.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div class="container">
<div class="header">
    <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="125" height="190" align="left" id="FlashID" title="Sub Zero Refrigeration "Subby" Logo">
      <param name="movie" value="Images/SubbyMovie.swf" />
      <param name="quality" value="high" />
      <param name="wmode" value="opaque" />
      <param name="swfversion" value="7.0.70.0" />
      
      <param name="expressinstall" value="Scripts/expressInstall.swf" />
      
      
      <object data="Images/SubbyMovie.swf" type="application/x-shockwave-flash" width="125" height="190" align="left">
        
        <param name="quality" value="high" />
        <param name="wmode" value="opaque" />
        <param name="swfversion" value="7.0.70.0" />
        <param name="expressinstall" value="Scripts/expressInstall.swf" />
        
        <div>
          <h4>Content on this page requires a newer version of Adobe Flash Player.</h4>
          <p><a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash player" width="112" height="33" /></a></p>
        </div>
        
      </object>
      
    </object>
    <img src="Images/HeaderOriginal.jpg" alt="Sub Zero Refrigeration Heating and Air Condtioning Header Photo" width="834" height="190" align="left" /><br />
</div>
<div class="container" id="navbar"> </div>
<div class="namephoto">
<ul id="MenuBar" class="MenuBarHorizontal">
   <li><a class="MenuBarItem" href="#">Home</a></li>
   <li><a class="MenuBarItemSubmenu" href="#">About Us</a>
     <ul>
       <li><a href="#" class="MenuBarItemSubmenu">Our Staff</a>
         <ul>
           <li><a href="#">Bud Wagner</a></li>
           <li><a href="#">Tim Wagner</a></li>
           <li><a href="#">Dave Allen</a></li>
           <li><a href="#">Terry Burke</a></li>
           <li><a href="#">Larry Skarr</a></li>
           <li><a href="#">Niko Opla</a></li>
           <li><a href="#">Gina Ames</a></li>
           <li><a href="#">Laura Kane</a></li>
         </ul>
       </li>
       <li><a href="#">Our Service Area</a></li>
       <li><a href="#">Our Mission Statement</a></li>
       <li><a href="#" class="MenuBarItemSubmenu">Why Choose Sub Zero Refrigeration?</a>
         <ul>
           <li><a href="#">Our Review's</a></li>
           <li><a href="#">Our Competition's Reviews</a></li>
         </ul>
       </li>
       <li><a href="#" class="MenuBarItemSubmenu">Careers</a>
         <ul>
<li><a href="#">HVAC Technician</a></li>
<li><a href="#">HVAC/R Installer</a></li>
<li><a href="#">Commercial Refrigeration Technician</a></li>
         </ul>
       </li>
       <li><a href="#">Testimonials</a></li>
       <li><a href="#" class="MenuBarItemSubmenu">Easily Leave Us a Review</a>
         <ul>
           <li><a href="#">On "YAHOO"</a></li>
           <li><a href="#">On "YELP"</a></li>
           <li><a href="#">On "MERCHANT CIRCLE"</a></li>
           <li><a href="#">On "GOOGLE PLACES"</a></li>
         </ul>
       </li>
</ul>
   </li>
   <li><a class="MenuBarItemSubmenu" href="#">Repair</a>
     <ul>
<li><a href="#">Commercial Refrigeration</a></li>
<li><a href="#">Commercial Rooftop</a></li>
<li><a href="#">Commercial Ice Machine</a></li>
<li><a href="#">Air Conditioning </a></li>
<li><a href="#">Boiler</a></li>
<li><a href="#">Furnace</a></li>
<li><a href="#">Heat Pump</a></li>
<li><a href="#">Indoor Air Quality</a></li>
<li><a href="#">Schedule A Service Call</a></li>
     </ul>
</li>
   <li><a class="MenuBarItemSubmenu" href="#">Sales</a>
     <ul>
<li><a href="#">Commercial Refrigeration</a></li>
<li><a href="#">Commercial Rooftop</a></li>
<li><a href="#">Commercial Ice Machine</a></li>
<li><a href="#">Air Conditioning</a></li>
<li><a href="#">Boiler</a></li>
<li><a href="#">Furnace </a></li>
<li><a href="#">Heat Pump</a></li>
<li><a href="#">Indoor Air Quality</a></li>
<li><a href="#">Financing</a></li>
       <li><a href="#">Schedule a "FREE" Computerized ACCA MJ8 Equipment Replacement Estimate </a></li>
     </ul>
</li>
   <li><a class="MenuBarItemSubmenu" href="#">Maintenance</a>
     <ul>
<li><a href="#">Commercial Refrigeration Service Agreements</a></li>
<li><a href="#">Commercial Rooftop Service Agreements</a></li>
<li><a href="#">Commercial Ice Machine Service Agreements</a></li>
<li><a href="#">Residential Air Conditioning Service Agreements</a></li>
<li><a href="#">Residential Boiler Service Agreements</a></li>
<li><a href="#">Residential Furnace and IAQ Service Agreements</a></li>
<li><a href="#">Heat Pump Service Agreements</a></li>
</ul>
</li>
   <li><a class="MenuBarItemSubmenu" href="#">Products</a>
     <ul>
       <li><a href="#" class="MenuBarItemSubmenu">Commercial Refrigeration</a>
         <ul>
           <li><a href="#">Beverage Air</a></li>
           <li><a href="#">Beacon Smart Controller</a></li>
           <li><a href="#">Continental</a></li>
           <li><a href="#">Crown Tonka Walk Ins</a></li>
           <li><a href="#">Delfield</a></li>
           <li><a href="#">Heatcraft Refrigeration</a></li>
           <li><a href="#">Hoshizaki Refrigeration</a></li>
<li><a href="#">International Cold Storage</a></li>
<li><a href="#">Kelvinator</a></li>
<li><a href="#">Kolpak</a></li>
<li><a href="#">Larkin Refrigeration</a></li>
<li><a href="#">Perlik Bar and Beverage Equipment</a></li>
<li><a href="#">True Refrigeration</a></li>
         </ul>
       </li>
       <li><a href="#" class="MenuBarItemSubmenu">Commercial Rooftop</a>
         <ul>
           <li><a href="#">Arcoaire</a></li>
           <li><a href="#">American Standard</a></li>
         </ul>
       </li>
       <li><a href="#" class="MenuBarItemSubmenu">Commercial Ice Machine</a>
         <ul>
           <li><a href="#">Hoshizaki Ice Machines</a></li>
           <li><a href="#">Manitowoc Ice Machines</a></li>
           <li><a href="#">Scotsman Ice Machines</a></li>
         </ul>
       </li>
       <li><a href="#" class="MenuBarItemSubmenu">Air Conditioning</a>
         <ul>
           <li><a href="html/subzero/arcoaireaircondioning.html">Arcoaire</a></li>
           <li><a href="html/subzero/americanstandardairconditioning.html">American Standard</a></li>
           <li><a href="html/subzero/mitsubishiairconditioners.html">Mitsubishi</a></li>
         </ul>
     </li>
       <li><a href="#" class="MenuBarItemSubmenu">Boiler </a>
         <ul>
           <li><a href="#">Weil McLain Residential</a></li>
           <li><a href="#">Weil McLain Commercial</a></li>
         </ul>
   </li>
       <li><a href="#" class="MenuBarItemSubmenu">Furnace </a>
         <ul>
           <li><a href="#">Arcoaire</a></li>
           <li><a href="#">American Standard</a></li>
           <li><a href="#">Mitsubishi</a></li>
         </ul>
   </li>
       <li><a href="#" class="MenuBarItemSubmenu">Heat Pump </a>
         <ul>
           <li><a href="#">Arcoaire</a></li>
           <li><a href="#">American Standard</a></li>
           <li><a href="#">Mitsubishi</a></li>
         </ul>
   </li>
       <li><a href="#" class="MenuBarItemSubmenu">Indoor Air Quality</a>
         <ul>
           <li><a href="#">Aprilaire Humidifiers</a></li>
           <li><a href="#">Honeywell Electronic Air Cleaners</a></li>
           <li><a href="#">Honeywell Thermostats</a></li>
         </ul>
   </li>
     </ul>
</li>
   <li><a class="MenuBarItemSubmenu" href="#">Job Photos</a>
     <ul>
<li><a href="#">Commercial Refrigeration</a></li>
<li><a href="#">Commercial Rooftop</a></li>
<li><a href="#">Commercial Ice Machine</a></li>
<li><a href="#">Air Conditioning</a></li>
<li><a href="#">Boiler</a></li>
<li><a href="#">Furnace</a></li>
<li><a href="#">Heat Pump</a></li>
<li><a href="#">Indoor Air Quality</a></li>
     </ul>
   </li>
   <li><a class="MenuBarItemSubmenu" href="#">Cool Savings</a>
     <ul>
       <li><a href="#">Monthly Specials</a></li>
       <li><a href="#">Manufacturers Rebates</a></li>
       <li><a href="#">Utility Rebates</a></li>
       <li><a href="#">Website Coupons</a></li>
<li><a href="#">Customer Referral Program</a></li>
     </ul>
   </li>
   <li><a class="MenuBarItemSubmenu" href="#">Social</a>
     <ul>
       <li><a href="#">"LIKE" Us on Facebook</a></li>
       <li><a href="#">"FOLLOW" Us on Twitter</a></li>
<li><a href="#">Facebook Disclaimer</a></li>
     </ul>
</li>
<li><a class="MenuBarItem" href="#">Contact Us</a> </li>
</ul>
<p><br />
</p>
<div class="sidebar1"><img src="Images/home.jpg" alt="Home Page Photo" width="105" height="240" /></div></div>
<div class="content">
    <h1>Instructions</h1>
    <p>Be aware that the CSS for these layouts is heavily commented. If you do most of your work in Design view, have a peek at the code to get tips on working with the CSS for the fixed layouts. You can remove these comments before you launch your site. To learn more about the techniques used in these CSS Layouts, read this article at Adobe's Developer Center - <a href="http://www.adobe.com/go/adc_css_layouts">http://www.adobe.com/go/adc_css_layouts</a>.</p>
    <h1>Clearing Method</h1>
    <p>Because all the columns are floated, this layout uses a clear:both declaration in the .footer rule. This clearing technique forces the .container to understand where the columns end in order to show any borders or background colors you place on the .container. If your design requires you to remove the .footer from the .container, you'll need to use a different clearing method. The most reliable will be to add a <br class="clearfloat" /> or <div class="clearfloat"></div> after your final floated column (but before the .container closes). This will have the same clearing effect.</p>
    <h3>Logo Replacement</h3>
    <p>An image placeholder was used in this layout in the .header where you'll likely want to place a logo. It is recommended that you remove the placeholder and replace it with your own linked logo. </p>
    <p> Be aware that if you use the Property inspector to navigate to your logo image using the SRC field (instead of removing and replacing the placeholder), you should remove the inline background and display properties. These inline styles are only used to make the logo placeholder show up in browsers for demonstration purposes. </p>
    <p>To remove the inline styles, make sure your CSS Styles panel is set to Current. Select the image, and in the Properties pane of the CSS Styles panel, right click and delete the display and background properties. (Of course, you can always go directly into the code and delete the inline styles from the image or placeholder there.)</p>
    <h4>Backgrounds</h4>
    <p>By nature, the background color on any div will only show for the length of the content. This means if you're using a background color or border to create the look of a side column, it won't extend all the way to the footer but will stop when the content ends. If the .content div will always contain more content, you can place a border on the .content div to divide it from the column.</p>
    </div>
<div class="footer">
    <table width="960" border="0" cellspacing="0" cellpadding="0">
      <tr>
        <th width="102" scope="col"> </th>
        <th width="101" scope="col"> </th>
        <th width="106" scope="col"> </th>
        <th width="120" scope="col"> </th>
        <th width="172" scope="col"> </th>
        <th width="120" scope="col"> </th>
        <th width="103" scope="col"> </th>
        <th width="136" scope="col"> </th>
      </tr>
      <tr>
        <td colspan="2"><img src="Images/van.jpg" alt="Sub Zero Refrigeration Heating and Air Conditioning Service Van" width="243" height="109" align="left" /></td>
        <td colspan="6"><img src="Images/footer_right.jpg" width="717" height="109" alt="Footer" /></td>
      </tr>
    </table>
</div>
<div class="footer2">
    <div class="footer">
    <table width="960" height="62" border="1" align="center" cellspacing="8">
      <tr valign="middle">
        <th width="234" scope="col">Schedule a Service Call</th>
        <th width="247" scope="col"><p>Schedule Free New Equipment Replacement Estimate</p></th>
        <th width="99" scope="col"><a href="https://www.acca.org/consumer/find-a-contractor" target="_blank"><img src="Images/acca.gif" width="85" height="48" alt="ACCA Sub Zero Refrigeration" /></a></th>
        <th width="94" scope="col"><a href="http://www.bbb.org/chicago/business-reviews/heating-and-air-conditioning/sub-zero-refriger ation-and-a-c-in-midlothian-il-7695" target="_blank"><img src="Images/BBB.png" width="87" height="48" alt="Sub Zero Refrigeration BBB A+ Rating" /></a></th>
        <th width="84" scope="col"><a href="http://www.natex.org/" target="_blank"><img src="Images/nate.png" width="76" height="74" alt="NATE Sub Zero Refrigeration" /></a></th>
        <th width="83" scope="col"><a href="http://www.twitter.com/subzerorefrig" target="_new"><img src="Images/twitter_logo.jpg" width="69" height="69" alt="Follow us on Twitter" /></a></th>
        <th width="143" scope="col"><a href="https://www.facebook.com/subzerorefrig" target="_new"><img src="Images/facebook.png" width="81" height="81" alt="" /></a></th>
      </tr>
    </table>
    </div>
    <div class="footer3" id="footer3">
      <div class="footer">
        <table width="960" border="0" align="center" cellpadding="0" cellspacing="0">
          <tr>
            <th width="960" style="background-color: #B7E3EA; font-size: 10px; font-family: Arial, Helvetica, sans-serif" scope="col">Home | About Us | Repair | Sales | Maintenance | Products | Our Job Photos | Cool Savings | Social | Contact Us | Schedule Free New Equipment Estimate | Schedule Service | Site Map<br />
            Search Sub Zero Refrigeration Heating and Air Conditioning<br />            </th>
          </tr>
        </table>
        <p>      Copyright 1999-2013 | Last updated on
          February 19, 2012 | Web designer's - Ted Wagner and Cherie White Cachampis      </p>
      </div>
    </div>
</div>
</div>
<script type="text/javascript">
var MenuBar1 = new Spry.Widget.MenuBar("MenuBar", {imgDown:"../SpryAssets/SpryMenuBarDownHover.gif", imgRight:"../SpryAssets/SpryMenuBarRightHover.gif"});
swfobject.registerObject("FlashID");
</script>
</body>
</html>

I seem to have fixed it by putting <div class="clearfloat"></div> after the navigation bar?

Wheres my Finder Menu bar gone??

This is a really odd one...
When my partner switches user to her account the a pop appears stating "Finder failed to open; restart"
Then when she tries to open something in Applications the computer freezes, the finder menu bar on the top of the screen vanishes and nothing can be opened from the dock. Tried the variety of CTR + all sorts and nothing happens!
Sometimes open applications (such as Word or Safari) have some limited function, sometimes not.
As the finders gone I can't switch users. On the few occations when I have been able to my user accounts finder menu bar has either been transparent or not there!
All I've been able to do is hold the on/off button down until the computer switches off!
Anyone having this issue? Able to help??
Cheers
Gethin

Hi
What exactly did you try? CTR is not something I'm familiar with unless it's your shorthand for something else?
Have you tried booting in safe mode yet? Hold down the shift key. Be patient as it can take some time. At the log in try and log in with her account. If you can navigate to the /Users/Home/Library/Preferences folder. Find the com.apple.finder.plist. Take this to the trash. Next launch DU and repair permissions. When done quit and Restart the mac. Post back if you're still having problems. If you have a chance at this point back up all important and relevant information.
Tony

How do you increase type size in menu bars and panels?

I recently abandoned my Mac Pro 1,1 for a shiny new Mac Pro cylinder running Mavericks 10.9.5. I have paired it with an LG 27" IPS display. The reason I am using the LG is because I was frustrated that Apple pays absolutely no attention to the pleas of their pro users for a non-reflective display.
And now I find that the type in the menu bars and panels is so small that it literally causes me eyestrain - and that I can't increase the type size. I am older (62), but I still need to use my Mac to survive. Unfortunately, though, it appears that Apple designers have again ignored the needs of their pro users - in this case, older ones.
I have been a graphic designer and a producer of technical and marketing publications for over 35 years, and I appreciate good-looking design - but the real measure of design is usability. Even great-looking design must be user friendly.
So now I am wondering if Apple interface designers are amateurs, or if they just don't give a @#$% about their users.
Did I miss it? Is their a way to increase type size in menu bars, etc.?

Did I miss it?
Yes.
System preferences > Displays > Resolution ...
choose "Scaled" and pick an alternate resolution.
When you do this, text will be drawn as if your screen were actually set to that revolution, but graphics will be drawn full-scale at the native resolution.
This feature was invented for Retina Displays, and has finally been made available for additional displays.

Menu Exits and Screen Exits

hi everyone,
can you send me some examples on menu exits and screen exits.
thank you.
preetham

Hi Preetham,
In older versions MENU Exits approached through Transaction CMOD by creating
PROJECTS and activating the project and assigning Program to that
Transaction Codes. For MENU Exits, Transaction Codes will be starting with
"+" sign and with default text "NODE TEXT NOT FOUND" for which you can
assign your Report or Dialog Program etc., (for Eg:- +DW4 MENU Exits
Transaction available in TOOLS --> ABAP Workbench --> Utilities --> <Node
Text Not found>).
Procedure for Creating MENU Exits.
1) To get into Area Menu Maintenance Screen Type SE43 T.Code in Command
Line.
2) In Area Menu Paramenter type 'S000' (S triple Zero)
3) Then Press Change Icon in Application Tool Bar. Then It may ask for
Access Key [or] it may display "Specify Processing mode" window. If it ask
for the Access Key Check for the availability of OSS Note and apply to open
Standard SAP Menu to include MENU Exits. Otherwise, if it display "Specify
Processing mode" window with Three Push Button. In which select "Change" and
proceed further.
4) Then it will display "Information" window with the following information
"Caution : The Original Language of the structure is German (editing lang. :
English) ". Then press "Enter Key to proceed further.
5) Then you will get into "Edit Area Menu S000".
6) for eg:- Expand Tools Menu.
7) Then Press ABAP Workbench <Icon>.
8) Then you will get into ABAP Workbench Menu Tree.
9) Then Expand Utilities Menu.
10) In the last line you will find one MENU EXIT Provision to include your
own menu. "Node Text Not Found" This text can be change by double Clicking
that. There you can find the T.Code. Here for Eg:- "+DW4".
11) for eg: - Here change the Text to "Sample Menu Exit" and then note down
the T.Code "+DW4".
12) Then Save with Change Request Number and come out of Transaction SE43.
13) Then Goto Transaction SE93.
14) Then type T.Code "+DW4" and press Create.
15) Then proceed further to create transaction called "+DW4".
I hope this could help you in Creating Menu Exit...
Creating menu exits
http://help.sap.com/saphelp_nw04/helpdata/en/c8/19762743b111d1896f0000e8322d00/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/83/7a18cbde6e11d195460000e82de14a/frameset.htm
For screen exits.
http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
Screen exits add fields to screens in R/3 applications. SAP creates screen exits by placing special subscreen areas on a standard R/3 screen and calling a customer subscreen from the standard screens flow logic.
the tcode is cmod...
1.From the main screen of the Project management transaction, proceed as follows:
Select Enhancement components and choose Change.
2.Choose Edit component.
3.Choose the screen exit and double click on it
4.Create your subscreen using the Screen Painter.
5.Design your screen to be added to the standard screen and activate the particular screen and return back to the flow logic .
6.Choose the PAI and PBO to write down the logic.
7.Generate your screen and choose Back (the green arrow) to return to the Project management transaction.
8.Go to the transaction ME22 to view the customer defined screen exit.
9.Enter the purchase order number and press Enter.
10.Go to the menu header --> Details.
11.Purchase number is visible on the standard screen
check the foll link,
http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
Menu exits allow you to add your own functions to the pulldown menus in standard R/3 transactions. To take advantage of a menu exit, you first need to create a project as described in the section Creating an add-on project. Then, you must include the SAP enhancement package that contains the menu exit you want to use in your project. From the main screen of the Project management transaction, proceed as follows:
Select Enhancement components and choose Change.
The system lists all customer exits contained in the enhancements included in your project.
Place the cursor on the menu exit you want to add your own function to.
Choose Edit component.
The system displays technical information about the menu entry. It also displays two input fields where you can specify a language and the text you want your menu item to have.
Enter the name of your menu function (such as Special order method) in the field New text.
Choose Save text.
Your special menu function will not appear in the pulldown menu of the corresponding standard transaction until you activate your enhancement project.
Specifying a menu text and activating your project are not the only steps you need to take to make your own menu item work. After you carry out these steps, your menu item will appear, but it will not call a corresponding function. To attach your menu entry to its corresponding function, you need to create a function module for the function module exit associated with your menu text. This function module exit is part of the same SAP enhancement that contains the menu exit you used. Creating Customer-Specific Function Modules tells you more about how to use function module exits.
also refer
MEnu Exit
http://www.sap-img.com/abap/what-is-user-exits.htm
Creating menu exits
http://help.sap.com/saphelp_nw04/helpdata/en/c8/19762743b111d1896f0000e8322d00/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/83/7a18cbde6e11d195460000e82de14a/frameset.htm
For screen exits.
http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
chech these links for user exists its usefull
http://www.allsaplinks.com/user_exit.html
Re: Screen exit
user exit and customer exit
http://help.sap.com/saphelp_47x200/helpdata/en/dd/561602545a11d1a7020000e829fd11/frameset.htm
http://www.sap-basis-abap.com/sapab013.htm
http://www.sap-img.com/abap/what-is-user-exits.htm
How to implement screen exit for a SAP standard transaction
Introduction
SAP provides standard transactions to enter data into database. But a client may want to maintain some additional information in SAP other than what is provided.
To make provisions for this, additional screens have to be provided and additional fields must be added into appropriate database table.
To pave way for this, SAP has provided the option for screen exits. Usually, SAP provides the following:
An append structure in the database table with the new fields.
A subscreen area into the standard screen where the programmer can attach his subscreen of his own program with the new fields.
A function group under which the new subscreen has to be created with the new fields.
Function exits to synchronize the PBO and PAI of the standard SAP program with the PBO and PAI of the subscreen so that data can flow back and forth between the standard SAP program and the program written by the developer for the subscreen. These function modules also exist in the same function group under which the subscreen will have to be developed.
Finally, a linkage has to be done between the subscreen area of standard SAP screen with the custom subscreen constructed by the developer.
Typically, SAP provides an enhancement in which the developer can create an append structure, use the function exits to synchronize the PBO and PAI of the standard SAP program and the custom subscreen program, and make the necessary linking( as mentioned above in step 4. But, again, this is not a hard and fast rule. Linking in some case, is also done by configurations.) SAP also usually provides the name of the function group under which the subscreen has to be developed.
Necessary guidance about implementing a screen exit development is usually available in the Documentation section of the enhancement ( can be availed by transaction SMOD).
Pre-Requisites
The developer to work on screen exit should have essential knowledge on the following:
DDIC concepts, including the knowledge of append structure.
Concept of SAP Enhancements and implementing them using Projects.
Concept of function exits.
Knowledge on Module Pool including subscreens, Tabstrip controls etc.
Steps
Guidelines
So, a developer can follow the guidelines mentioned below to implement a screen exit to a standard SAP transaction, as and when required:
Find out the Required Enhancements
Go to SMOD. Press F4 in the Enhancement field. In the next popup window, click pushbutton SAP Applications. A list will appear that contains information on all the enhancements, categorized under functional areas. Developer must search for the enhancements relevant to his functional area of interest for e.g., Purchasing, Asset Accounting, etc.
Note down the enhancements. Then, come to the initial screen of SMOD and view the documentation of each enhancement to find out which one is required for your development.
Utilize the Enhancement in a Project
After you have found one, do as directed in the documentation. Generally, the steps are as follows:
Create a project using CMOD including your enhancement.
Create the append structure with new fields.
Go to the desired function group and create a subscreen with the new fields. Write PBO and PAI for the subscreen, if required.
Use the function exits in the enhancement to link the PBO and PAI of the subscreen with that of the main SAP program supporting the SAP transaction.
Maintain necessary linkage between the subscreen area of standard SAP program with the custom subscreen developed along with the custom program name. This can be done in the project (developed by CMOD including the enhancement) or outside as a part of configuration.
Activate the project.
Test to ensure that required functionality are met.
Case Study 1
Add three new custom fields for Asset master and maintain information for them
Requirement
Three fields in the legacy system have to be maintained in Asset master. These fields are:
Original Asset number 20 characters
Location 2 15 Characters.
Model no 20 characters
Location 2 should start with L.
Pre-Analysis
Finding out the Enhancement
As described above, the enhancement is determined. It was found, that enhancement AIST0002 will serve the purpose. It contains the following components (can be viewed by transaction SMOD):
Exit Type Description EXIT_SAPL1022_001 Function Exit Check of User-Defined Fields when Using Create and Change BAPI EXIT_SAPLAIST_002 Function Exit Transfer Data for User Subscreens in PBO. EXIT_SAPLAIST_003 Function Exit Transfer of User-Defined Fields to SAP Master Data Transactions CI_ANLU Customizing Include Include structure to add new fields
Studying the Function Exits
The function module level documentation for the function exits are then viewed from transaction SE37. The documentation clearly laid out for the purpose for their use:
EXIT_SAPLAIST_002
Function module Level Documentation
This function module is called by asset master data maintenance at the start of the dialog. (When changing, it is called after reading of the data from the database; when creating it is called after the transfer of the default values from the asset class and reference asset.) The purpose of the function module is to enable this function group to recognize the master data. For interpreting or controlling master data fields that are important for user fields, it is possible to transfer to global variables at this point, so that they can be recognized when the user subscreens are processed.
Import Parameters
Understanding
This function module is called at the PBO to pass the information retrieved from the database to pass them to the custom subscreen and its underlying program. Import parameter : I_ANLU will be populated with the values for user-defined fields which will be passed to the subscreen program. So, there must be some sort of variable assignment from I_ANLU.
EXIT_SAPLAIST_003
Function module Documentation: This function module is called by SAP asset master data maintenance after the screens are processed, but before saving. The purpose of the function module is to transfer fields entered on user sub-screens of SAP asset data maintenance to the database for updating. The export parameter for this function module is:
Understanding
This function module will be used to transfer the user entered data in the subscreen fields to the main SAP program, which will then be saved into the database.
Studying the Documentation of the Enhancement
The enhancement documentation (as is viewed from the initial screen of SMOD] also supports the idea. Moreover, it informs that we need to develop a subscreen under function group XAIS. This is the function group under which the two function exit modules also exist. So, if the custom subscreen refers to the global data of the function group XAIS, then those values will also be available to these function exits as well.
Going to SE80 and viewing the function group XAIS helps us to inform that there are three DDIC tables declared for it:
Deciding the Final course of Action
After making all the investigations, the final course of action was determined.
SrlNo Step Justification
A project has to be created using transaction CMOD where the enhancement AIST0002 will be included.
Customizing include CI_ANLU has to be created with the custom fields demanded When CI_ANLU will be developed, the custom fields will get appended to the database table ANLU. Also, these fields will be used to create screen fields in the new subscreen.
A custom subscreen, say, 9000 will be developed under function group XAIS. The screen group for the screen will be CUST (or any name). The three custom fields added to table ANLU (by creating CI_ANLU) will be used to create new fields in the screen.
In the PAI of the subscreen, validation for Location to start with L will be added. The subscreen with three new fields has to be developed so that it can be attached to a subscreen area of the asset master screens.
In the custom include of the function exit module EXIT_SAPLAIST_002, the following code will be written:-
ANLU = I_ANLU. I_ANLU is the import parameter of this FM. The value is assigned to the global variable ANLU, referring which the three new subscreen fields are developed. So, data retrieved from database table ANLU will be passed to this FM as I_ANLU by the standard SAP main program. The value will be taken and passed to the global variable of the function group XAIS, so that the three custom fields (referring to ANLU of XAIS) get populated.
In the custom include of the function exit module EXIT_SAPLAIST_003, the following code will be written:-
E_ANLU = ANLU. The changed values in the subscreen fields exist in global variable ANLU for the function group XAIS. This function exit module will pass the data back to the SAP main program as E_ANLU.
Proper linkage/configuration has to be done so that the new subscreens get linked to the appropriate subscreen area of the Asset master screen. This has to be done otherwise, the new custom subscreen will not be displayed in the Asset master screens.
Development
Creating a Project to include the enhancement
Go to transaction CMOD and create a project.
Enter a description for the project. Then, click on the pushbutton Enhancement Assignments in the Application Toolbar.
Enter the name of the enhancement and Save.
Go to Components.
Creating Custom Include for ANLU
The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.
Create the include structure with three new fields, as required. Then, save and activate it.
Develop the subscreen and the program
Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.
Create it as subscreen.
Then, go to the Layout of the screen and create three new fields from Database table ANLU.
Drag the fields in the screen body and place them.
Then, save and activate the screen and come back to screen flow editor.
Create the PAI module to add validation for field Location 2, as required .
Activate the whole function group and come out.
Write code in the Function Exits to synchronize the programs
Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.
Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:
Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.
Then, activate everything the whole project and come out.
Complete the configuration to link the subscreen
The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.
Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.
Here, the requirement is to create these three custom fields in the tab page General of asset master screen ( AS01/AS02/AS03/AS91).
Determine the Layout
To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class 1000 and click on folder General Assignment of Layout.
Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout SAP cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.
Create new tab layout
Go to transaction AOLA. Copy the tab layout SAP to create another layout, say, YSUB.
System will copy all the settings and will inform you about that.
Select your newly created layout and double-click on the folder Tab page titles.
You want to put your custom fields in the tab page General. So, select this tab page entry and double-click on the folder "Position of Groups".
Here, all the field groups currently residing in the tab-page General are shown. Add an entry for your newly created fields.
Select the group box from the list. An entry will come with U padded with the custom subscreen prepared by you.
Then, save and come out.
Assign the new Layout to Asset Class
Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.
Save and come out.
Test the Exit
Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to themsave. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.
Original Source: ittoolbox.com
MENU
refer
MEnu Exit
just refer to the link below for step by step procedure with screen shots
http://www.sapmaterial.com/?gclid=CN322K28t4sCFQ-WbgodSGbK2g
Check this link:
http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975e643b111d1896f0000e8322d00/frameset.htm
Menu exits allow you to add your own functions to the pulldown menus in standard R/3 transactions. To take advantage of a menu exit, you first need to create a project as described in the section Creating an add-on project. Then, you must include the SAP enhancement package that contains the menu exit you want to use in your project. From the main screen of the Project management transaction, proceed as follows:
Select Enhancement components and choose Change.
The system lists all customer exits contained in the enhancements included in your project.
Place the cursor on the menu exit you want to add your own function to.
Choose Edit component.
The system displays technical information about the menu entry. It also displays two input fields where you can specify a language and the text you want your menu item to have.
Enter the name of your menu function (such as Special order method) in the field New text.
Choose Save text.
Your special menu function will not appear in the pulldown menu of the corresponding standard transaction until you activate your enhancement project.
Specifying a menu text and activating your project are not the only steps you need to take to make your own menu item work. After you carry out these steps, your menu item will appear, but it will not call a corresponding function. To attach your menu entry to its corresponding function, you need to create a function module for the function module exit associated with your menu text. This function module exit is part of the same SAP enhancement that contains the menu exit you used. Creating Customer-Specific Function Modules tells you more about how to use function module exits.
User exits (Function module exits) are exits developed by SAP. The exit is implementerd as a call to a function module. The code for the function module is written by the developer. You are not writing the code directly in the function module, but in the include that is implemented in the function module.
The naming standard of function modules for functionmodule exits is:
EXIT_<program name><3 digit suffix>
The call to a functionmodule exit is implemented as:
CALL CUSTOMER.-FUNCTION <3 digit suffix>
To find a Exit.
Goto Transaction -- Find The Package
SMOD >f4>Use the Package here to Find the Exits In the Package.
Else if you Want to search by Application Area wise ,
There is one more tab to find the Exits in the Respective Application Area.
Implementing the Exit-- CMOD Create ProjectsAssgn your Component .
Now Run ur Transaction to Check if it Triggers.
Thats it..
Suppose you need to find out all the user exits related to a tcode.
1. Execute the Tcode.
2. Open the SAP program.
3. Get the Development Class.
4. Execute Tcode SE84.
5. Open the Node 'Envir. -> Exit Techniques -> 'Customer Exits -> Enhancements'
6. Enter the Development class and execute.
Check out this thread..
The specified item was not found.
1. Type the transaction : system->status-> <PROG. NAME>
2 open SE37 , type EXIT<PROG NAME> and press F4 to get the list of function exits available.
3. Open CMOD utilities->SAP enhancements
EDIT->All selections
4.type the function module name obtained in step 2, in fields 'component name' in 'additional selections' block. and execute.
5. The displayed list contains the enhancements names for the transaction You were looking for.
6. Create a project in CMOD and the code in default include->activate.
http://www.erpgenie.com/sap/abap/code/abap26.htm
which gives the list of exits for a tcode
http://help.sap.com/saphelp_nw04/helpdata/en/bf/ec079f5db911d295ae0000e82de14a/frameset.htm
For information on Exits, check these links
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
http://www.sapgenie.com/abap/code/abap26.htm
http://www.sap-img.com/abap/what-is-user-exits.htm
http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
http://www.easymarketplace.de/userexit.php
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
http://www.sappoint.com/abap/userexit.pdfUser-Exit
http://www.planetsap.com/userexit_main_page.htm
User-Exits
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
http://www.sap-img.com/ab038.htm
http://www.planetsap.com/userexit_main_page.htm
http://www.sap-basis-abap.com/sapab013.htm
http://sap.ittoolbox.com/documents/popular-q-and-a/user-exits-for-the-transaction-code-migo-3283
These links will help you to learn more on user exits.
http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/frameset.htm
http://www.planetsap.com/userexit_main_page.htm
http://www.allsaplinks.com/user_exit.html
www.sap-img.com/abap/what-is-user-exits.htm
Also please check these threads for more details about user exits.
Re: Screen exit
user exit and customer exit
user exit
1. Document on UserExits in FI/CO
http://www.ficoexpertonline.com/downloads/User%20ExitsWPedit.doc
2. Finding User Exits...
http://sap.ionelburlacu.ro/abap/sap2/Other_Useful_Tips.html#Finding_User_Exits
3. List of all User Exits...
http://www.planetsap.com/userexit_main_page.htm
Reward points if helpful.
Thanks
Naveen khan
Message was edited by:
Pattan Naveen

When a document gets hidden behind the menu bar and you can't move it

Whe, say, a Word document opens up so it's own header is behind the Apple Finder menu bar at the very top of the screen, you can't click on the header to move it anywhere on the screen. Like it's stuck there.
How Can I access documents like that?
I think this happens to me because I have a second screen (Apple 20") and when I drag documents from this screen to the PowerBook screen, this has a tendency to happen.

I tried to solve this problem using the plist method described at the following thread: http://discussions.apple.com/thread.jspa?messageID=1408414&#1408414
This method did not work.
The sucessful procedure is to access the small gear (or wheel?) icon in the bottome left corner of the character palette and select "Minimize Palette on Application Switch". Then change focus to another program that you are running, or just open a new application. This will cause the palette to shrink into a window so small that only one character is displayed. In my case the window also moved to a new position near the bottom of the screen. In this new position the palette is accessible and can be moved freely. I have even deselected the minimize feature and closed/reopened the palette successfully.
I hope this post can save someone else out there a lot of time if this happens.

Finder menu bar does not show up always

From time to time (maybe once a month) when I boot up my MBP, Finder Menu bar at the top of the screen does not automaticaly show up. Only basic screen color.In order to bring that bar (with apple icon in the left top corner and little magnifying glass,airport symbol etc in the right top corner) I have to click once at the top of the screen where that bar is suposed to be.Than it shows up and everything runs smoothly afterwords. At the same time my Dock works fine from the beginning. It does not bother me too much because everything else works perfectly fine and it happens not so often. I only wonder if anybody had a similar problem or if that is a problem at all. Thanks!

My own and my girlfriens's new 13" MBPs (10.6.2) have done this a couple of times. I really haven't bother to look into the case because I assumed that it's just a bug as it was happening on both machines. As a matter of fact, I haven't seen it happening for a while.

Can anyone tell me how to increase the text size in my menu bar and drop down menus?

Just bought a new 27" screen iMac. The menu bar and drop down menu text is much to small for me to see without leaning close to the screen. Does anyone know how to customize the text to a larger size. This is an issue for any program I open.

Once upon a time Apple displays packed in 72 dots to an inch (making their resolution 72 DPI). That meant that what we saw on screen at 100% scale was exactly what was printed on a printer - not to mention quite comfortable to read. However that advantage was eclipsed by the fact that photopgraphs and video were pixelated and the only solution to that was to increase the resolution - to pack in more dots per inch - which has the side effect of shrinking the size of text. Where I once used Word at 100% scale I now find it most comfortable at 150% scale.
There are several solutions. One, as Lex gave you, was to reduce the resolution of the LCD display. But unlike CRT displays, an LCD is tuned to a specific resolution and when you change it the results tend to be blurry. Another is to keep the resolution as it is and to adjust each program (if the program allows it). This makes Word usable and your browser can be set to use no font smaller than a size you set (which has some unpleasant side affects at some Web sites), but some programs and some parts of programs cannot be changed. The menubar and menus are among them. The third solution is one that Apple promised several years ago but has not yet provided - a resolution independant GUI. We can only hope that comes soon. And there's another partial solution - look in System Preferences under Accessibility.

I have checked the box "display date and time on the Menu Bar" and it does not work. Using OS X Yosemite 10.10.2 Anybody have a fix?

I have checked the box "display date and time on the Menu Bar" and it does not work. Using OS X Yosemite 10.10.2 Anybody have a fix?

Please read this whole message before doing anything.
This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
Step 1
The purpose of this step is to determine whether the problem is localized to your user account.
Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
While logged in as Guest, you won’t have access to any of your documents or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this behavior; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
*Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Please take this step regardless of the results of Step 1.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of Steps 1 and 2.

My Finder menu bar and screen is flashing. Is this a virus?

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