IMac strange white square on start up

Hi all has anyone else experienced a strange whie shape, square on thw white screen on start up just before it goes onto the login screen. since up grading to mountain lion OS X 10 ive had nothing but problems.

Reset PRAM. http://support.apple.com/kb/PH4405
Hope this helps.

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G5 Grey screen & flashing white square after start-up & unresponsive key.

After pressing the start button on my G5, instead of the usual blue start-up screen I got a grey screen with a small white square with a blue earth-globe, that flashed on & off. This eventually turned into a small folder with a finder face alternating with a ? mark. 10 attempts (over 1/2 hr) at switching on & off got no-where, so I left the grey screen going and after 10 minutes the G5 suddely went into the blue screen loading mode & then my chosen desktop picture. All apps seem to be OK.
I have not had this experience with my 2 year old flat panel G4 & I am wondering if I should do something remedial to prevent this happening again? The question is What? I am relectant to turn the G5 off in case I get a re-run so will leave it to sleep pro tem.
I have had this Mac for about 5 months from new & it has behaved itself until now. I am a novice so would welcome any help.
Thanks - Terry Wallis.

Terry,
Personally, I have always put the computer to sleep as I have been told this is less stressful for the hardware than a restart from a cold shutdown. I haven't had any hardware problems with this iMac G3 since new in 2001 so I tend to agree with this practice.
A good FAQ by Dr. Smoke of the X-Lab for OS X maintenance can be found here which dispells many of the maintenance myths that some follow.
littleshoulders [:-)

I have a small white square on my screen - it doesn't drag open or move, 21" iMac (mid 2010)

Just today I noticed a small pale white square on my screen. It's fixed in position, doesn't drag wider or open up anything.
iMac spec is 21" mid 2010 updated Xmas 2014 to OS X - Yosemite 10.10.1, 3.06 Ghz Intel Core i3

Howdy yogadude,
Welcome to Apple Support Communities.
It sounds like the small white square on your iMac's display may be a pixel anomaly, take a look at the article linked below for more information and possible solutions.
About LCD display pixel anomalies for Apple products released in 2010 and later - Apple Support
Cheers,
-Jason

Imac intel 10.4 wont start up. i don't get apple logo as the screen just goes white.

imac intel 10.4 wont start up. i don't get apple logo as the screen just goes white. i can hear click-click-click then a question mark instead of apple logo. if i insert install cd 1 i get apple logo and install instructions with no hardrive logo to install on

Yikes, sounds like the Hard Drive is dying.
Which exact iMac is it?
If you don't know the model, find the Serial# & use it on one of these sites, but don't post the Serial# here...
http://www.chipmunk.nl/klantenservice/applemodel.html
http://www.appleserialnumberinfo.com/Desktop/index.php
How to find the serial number of your Apple hardware product...
http://support.apple.com/kb/HT1349

When I turn on my iMac the white start up screen appears but then it goes onto a black screen

When I turn on my iMac, the white start up screen comes on with the noise. Then when it's supposed to show my accounts the screen goes black but I can still use the mouse?

Startup in Safe Mode
http://support.apple.com/kb/PH14204
Reset SMC. http://support.apple.com/kb/HT3964
Choose the appropriate method.

Intel OS X 10.7 iMac has white screen and three-alarm sound, won't start up

Intel OS X 10.7 iMac has white screen and three-alarm sound, won't start up

The 3 beeps during start-up are telling you that the RAM is bad.
If you can access the RAM modules, you may try taking them out and putting them back in, perhaps it's only bad contacts.
If that doesn't help, you'll need new RAM module(s).

Strange white, grey dots after editing time and date

Hi, I have a strange problem with iWork Pages (and Numbers as well). When I use the "edit date & time" option or double click on the selected date in my file... Well, each time I use it, one white dot appears on my screen. The dot is more like a very small white square with grey stroke. After using "edit date & time" there many of these squares. Only thing I can do to make them dissappear is to quit Pages (or Numbers) whit Cmd+Q and start it again. The screen is clear then until I use the time editing button again.
Does anyone have a clue what's happening?
I use a 13" MacBook Pro 2010 whit Mountain Lion.
I didn't such problems some time ago. I dont' think it is because of Mountain Lion, I think that it started some time ago on Snow Leopard after one of the iWork updates, but I'm not sure.
P.s. I'm attaching a screenshot of this issue. What on earth are those grey dots above the date???

Sadly, it didn't help. I've reinstalled iWork from my DVD. Twice.
First time with your script, reinstalled, updated from App Store. Same ugly dots again.
Second time I've removed manually iWork09 folder in the apps directory, then deleted Library->Application Support->iWork '09 and User->Library->Application Support->iWork '09 as well.
What I also did this time was to skip update process and check if the DVD version works fine, but... it doesn't.
Maybe it is something wrong with Mountain Lion? What could those dots be anyway?

IMac 21" Display square artefacts problem

Hello everyone!
I've already seen that there are several people having same problems (or almost the same), but i assume not quite the same.
Problem is - yesterday while watching just a film suddenly I saw strange colored squares all over my 21" iMacs (late 2011) internal display. Mac has been working for 1.5 years only (quite a shame...) Guarantee has already expired.
I saw that the squares refer to particular window - when moving a window all the squares existing on this window move with it.
Screenshot: http://rghost.net/49559599.view
There are no squares on dashboard background, in the recovery mode and on startup until login window appears
Dashboard: http://rghost.net/49559721.view
Recovery: http://rghost.net/49560165.view
If I set a white solid background of my desktop - there're no squares as well.
White one: http://rghost.net/49559817.view
Apple Hardware Diag didn't show any troubles.
Complete erase all and clean OSX (10.8.5) re-install didn't change anything.
Fan control showing both (left and right) fans are working, can't be a heat issue.
Color Depth change didn't solve the problem.
Reseting PRAM/NVRAM didn't solve the problem.
My next step will be checking the output on an external display. Opportunity will be in a week only
The only thing i can't explain - why there're no squares in recovery-mode, as windows and background look the same as in normal mode.
Anyone any suggestions? GPU or rather display panel? Would really appreciate any help.
P.S. If it's a display panel issue - I think I won't pay 600-700 EUR for replacing it.

too early... without aero theme - no problems, with aero theme - same picture as in OSX... Still hardware problem.

Why does the cursor have a white square beside it?

I use adobe professional to edit powerpoint slideshows that have been converted to pdfs. On certain slides some strange things happen. The cursor appears with a tiny white square to the right side of it, I cannot click on images, using the edit text and images function, and I can start a text box, but the text that I type is invisible. The application also often crashes on these slides (though I find Adobe Pro to crash ridiculously often anyway). I tried to take a screenshot but the cursor wouldn't show up.
I would like to figure out how to make these pages editable so that I can make notes on them.
Thanks in advance for any help.

Hi Rebecca,
Can you please share the file with me so that I can have a look. You can email me at [email protected]
I tried converting a pptx file to pdf and when I try to edit I am unable to view any such square box.
What version of PowerPoint and Acrobat are you using? Have you tried updating Acrobat to the latest patch and checked?
Is the issue replicable on other files as well or specific to this file?
Regards,
Rave

White Squares instead of Application Icons in Switch Applications

My "Switch Applications" (Command-Tab) has started sporadically showing a white square instead of one of the icons for the applications I have open. I can still click through to them, but it is a little disconcerting.
No particular application seems to be involved more than the others - Firefox, Finder, iTunes, and a Cisco AnyConnect VPN Client have all done this at one time or another today.
This may be related with the other problem that arose today: some application sub-windows sometimes appear simply as white window. (I mention this here because it may be relevant, but this problem has a separate thread: http://discussions.apple.com/message.jspa?messageID=13094719#13094719)
Does anyone know how I can fix this? Thank you.

Do a backup.
Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library. Then go to Preferences/com.apple.finder.plist. Move the .plist to your desktop.
Re-launch Finder by restarting the computer and test. If it works okay, delete the plist from the desktop.
If the same, return the .plist to where you got it from, overwriting the newer one.
Thanks to leonie for some information contained in this.

How can i get rid of a big white square on my google page?

i have a big white square with a cloured dot that circles all round on my google page on my ipad and cant get rid of it, what can i do?

Double click the home button then swipe the google app up to close it. If that doesn't work, press and hold both the home and power buttons 10-15 seconds till the Apple logo appears. Release both buttons. Wait 15-20 seconds till your iPad starts on it's own. If that doesn't work try deleting and reinstalling app.

570 GTX lockup with white squares

Card: MSI 570 GTX (N570GTX M2D12D5/OC)
Driver: Nvidia 270.61
Bios updated to latest (KK1)
According to MSI Afterburner I am running the stock settings: 988mV core voltage, 786MHz Core/1572MHz Shader/2100MHz Memory.
I have never overclocked the card beyond the stock OC that the card comes with.
When playing the game Rift after about an hour, sometimes less little white squares show up all over both of my monitors and then within a few seconds the computer locks up.
MSI Kombustor seems to work ok, I haven't run it indefinitely but it makes it through the default benchmark. I tried another stress program called OCCT. I ran that for about 20 minutes with default shader complexity (0) and it produced 1 error and no crashes. I tried it again with shader complexity 4 (out of 8) and every minute or two it would signal an error then after about half an hour I got the same lockup with the white squares. So far I have only seen this lockup occur in Rift and with OCCT. I beat Portal 2 in single player and Coop and played several hours of Shogun 2 with no issues.
This is actually my second 570. My original one started producing artifacts constantly and games were completely unplayable. I RMA'ed it a week or two ago and now this card is presenting a different problem.
Rest of my computer:
Windows 7 Home Premium (64bit)
Intel Core i5 760 at stock (2.80GHz)
8GB DDR3 Ram
750 Watt Silverstone power supply
Any suggestions on what to try next? Is the card bad? I didn't see any references to this exact problem when I tried searching the MSI forums. Though I did run across another forum where someone was having the same problem. I don't think they found a solution though.
Snapped a picture of the frozen screen with white squares:

Good to hear
Maybe Svet can make you a custombios, so you can flash your cards bios, then you dont have to use Afterburner all the time.
Hope he reacts

Strange white light appearing when password input required on locked apps!

Strange white light appearing when password input required on specific apps... Locked apps.
It is a thick white line) appearing momentarily on upper left side of my screen.
This only appears briefly as specific apps are opening up .....only on apps where a password is required,(locked apps) like password managers, Apple App Store, etc.
(this is a little troubling… And I'm wondering about the security of my phone now)
I'm using iPhone 5s with latest iOS 7.1 This only started after the latest iOS update!
Although this line appears very briefly, I was able to get some screenshots examples (see links)
[IMG]http://i58.tinypic.com/1zo9dt1.jpg[/IMG]
[IMG]http://i61.tinypic.com/260bns8.jpg[/IMG]
Apple has no idea what this is… They're only suggestion was to wipe the phone clean and reinstall from the last backup! If that doesn't work, they would replace the phone.
Before I have to do this, I'm wondering if this could be a phone app doing this, or the iOS or something easily explained/ remedied?
Any ideas?

Anyone have any thoughts on this? Searches and experiments
still not yielded an answer...

Strange white gap on the right when viewed on Iphone

Hey guys
When viewed on computer, my 100% width appears to be working fine. But when viewed on iphone (possibly would do same on ipad and ipod but i don't own those) there is a strange white gap on the right.Maybe about 10 px worth.
I noticed in the "services" section, some of the writing was over hanging this white gap so i thought maybe i coded it wrongly and it was pushing the whole screen across. However i shrunk the width of that container now and its not overhanging, but the white gap is still there
I would have a guess that it is a freaky padding or margin setting somewhere in my coding...
site: http://www.jpmediaonline.co.uk
Any thoughts?

It definitely does matter. Like I mentioned earlier, when you have a fixed width of 1,000px for your content container, your 100% width setting for your outer container will be ignored - which means priority is given to 1,000px thereby rendering the whitespace to the right as your background is again a 128px square image. One solution I can think of is to make your background image 1x1px square that you can repeat. See if this makes any difference.'
My site, the autoscroller - I didn't use any plug-in as such. I simply used scrollTop from jQuery API and changed the settings to match . You can read about it here: http://api.jquery.com/scrollTop/
Here's my actual function that I'm calling when a menu button is pressed to scroll the div ID associated with it to scroll to Top of the screen. Again, this works for me, as my menu is fixed to the top, unlike your site where each site has a menu bar.
$('ul#menu li a').click(function(){
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$('a#link').click(function(){
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               $('html,body').animate({scrollTop: $("div"+id).offset().top},'slow');
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White square when using Falsh 7.0.14.0

I use an old program about d-day and the last months of the second world war. There are maps, newspaper reports, photos and also videos on.
On the DVD disc is Flash player version 7 included. On my PC is, of course, the latest version of Flash Player. What happens now?
As soon as the program starts up I have access to all the parts. Only when I want to start a video then it will open the Flash Player but is covered by a large white surface. Only along the extreme edges you can see that there is a video below is and which also plays just under the white square. How can I get that white area get it out? Who can help me?

No problems here.
Clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
* Firefox > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"
"Remove Cookies" from sites causing problems:
* Firefox > Preferences > Privacy > Cookies: "Show Cookies"
Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

IMac strange white square on start up

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