Start up- none - screen with a circle with a diagonal line through it

what should i do? computer mac book pro 17 inch not starting up. circle with a line though it.

I would suggest you do the following to see if this solves the prblem. If not, your hard drive may have failed.
Resetting the System Management Controller (SMC)
Resetting the SMC on portables with a battery you should not remove on your own
Note: Portable computers that have a battery you should not remove on your own include MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
Resetting NVRAM / PRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
Hope this helps

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It sounds like you are trying to manually manage the iPod's contents. If that's the case, make sure the Manually manage music and videos option is enabled from under your iPod's Summary tab. See this article for more information.
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When I try to drag and drop song into my ipod I get a black circle with a diagonal line through it?

Im trying to drag and drop songs from a new playlist that I have created but a black circle with a line through it appears meaning it wont allow me to put this song onto my ipod. I cant drag and drop any songs! ITUNES IS A NIGHTMARE TO WORK WITH AND IS NO WAY USER FRIENDLY - I HATE IT!!!!

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What's with the diagonal line through Finder's video preview thumbnail?

I recently upgraded to Snow Leopard, and while I really like the ability to play video files right from the icon in Finder, the thumbnail icon and subsequent video is split diagonally by a line. The video quality on the upper left portion looks to be the original, and the part to the lower right looks like it has increased contrast (see attached image—look in face and also the wall on the lower left to see what I'm talking about).
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The effect is a visual effect applied to icons and previews, to give the illusion that you are watching a screen-within-a-screen. It's the same visual effect that's applied to icons in iOS if the developer doesn't specify that it shouldn't (and, in OS X, I believe the developer has the option to do this too when they make a QuickLook plugin for Finder). The effect in only applied to previews, never to opening / viewing the item in an application.

IMac 8.1 3.06 GHz w/6 MB Ram, Lion and dead HD? all I get is "Gray Screen w/wirlie gig" but now for a new twist a circle with a diagonal line, like don't go. Is this a DEAD HD?

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I have an iMac 8, 1 that I upgraded Leopard to Snow Leopard. It was totally updated with the latest from Apple when I bought and tried installing Lion. The upgrade failed, shot my OS and I couldn't boot. Had the constant spinner on a grey screen.. did a format of the drive, hdd repair and everything came back clean... got back to Snow Leopard and all the updates on it again and then retried the Lion thing... same bs... dead duck. Crashed my system one too many times. I can't see where a few small changes, mostly app related can be classified as an OS upgrade and is not compatible with my iMac. I have the stuff running on my Mac Pro but have yet to notice anything impressive. I've always used F3 and really didn't require Mission Control. Just open you app folder for launch pad... duh? I use the hot corners anyhow. As far as Safari is concerned... as a power user, Apple missed the boat on that for me.. full screen etc.. Wow. I don't like the new Mail either..
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IMac 21.5" boots to white screen with vertical blue lines/bars then locks up

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If boot to Safe Mode, it still has the white screen with blue lines/bars, but eventually loads the login screen and I can successfully login and get to the desktop, but even that has the bars/lines.
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crw4096 wrote:
Is this a dead disk?
Very well could be.
If you can not startup from the Hardware Test, in Safe Mode or from > OS X Recovery as discribed in the Support article's.
Dig out the original Install Disc set that came with the iMac and do one of the following.
1. Attempt to Repair the Hard Drive.
Start from your Mac OS X Install disc: Insert the installation disc, then restart the computer while holding the C key.
When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
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Click the First Aid tab.
Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
Select your Mac OS X volume.
Click Repair. Disk Utility checks and repairs the disk.
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1. Insert Disc 2 and Startup holding the D key.
2. Select the Extended Hardware Test.
Then if you still can not get anything going, you need to contact your Local Apple Store or AASP and make a Service appointment.
see > Apple - Find Locations

7th generation ipod nano only displaying white screen with blue horizontal lines

Hi,
My 7th generation ipod nano is now only displaying a white screen with blue horizontal lines along the bottom. It still plays music and is recognised in itunes with I connect it to my PC.
I have reset is and restored it and it is charged.
Please advise.
Thanks,
Jess

Hi jkjuarez2012,
Thank you for visiting Apple Support Communities.
It sounds like your iPod nano is only showing the Apple logo with a white background, and you've tried many good steps including resetting and restoring the device. I know I'd miss my music in this situation.
Make sure that you followed the steps in this article when restoring your iPod:
Restoring iPod to factory settings - Apple Support
If the issue continues after restoring, your iPod nano may need to be serviced. You can use this link to find out more about iPod service:
If the issue is still not resolved, please read this information on servicing your iPod.
From:
iPod nano (7th generation): Hardware troubleshooting - Apple Support
Best Regards,
Jeremy

My Ipod was in my back pocket and when I took it out it has a white screen with 3 grey lines going threw it, and not even 5mins before, it was working fine... what could i be? it also isnt hooking up to itunes... please help

My Ipod was in my back pocket and when I took it out it has a white screen with 3 grey lines going threw it, and not even 5mins before, it was working fine... what could i be? it also isnt hooking up to itunes... please help

Try:
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- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
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Apple Retail Store - Genius Bar

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I inadvertantly dropped my iphone 3 and now have a white screen with green vertical lines to the right of the screen. It won't sync with itunes due to an error. What can I do?

Basic troubleshooting from the User's Guide is reset, restart, restore (first from backup then as new). Try each of these in order until the issue is resolved.
If it does not resolve the issue, the device is permanently damaged and will require replacement.

My iphone 4 randomly froze while i was face timing and now its just a black screen with thin grey lines on it. it wount turn on even if i press the lockscreen or home screen button. ive tried chargingit but that wont work either.

my iphone 4 randomly froze while i was face timing and now its just a black screen with thin grey lines on it. it wount turn on even if i press the lockscreen or home screen button. ive tried chargingit but that wont work either. It's been like this for about two hours now.

Hold down the Home and Power button for 20 seconds. And try to update again.
Also read and follow this:
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Suddenly I can't move files to trash, whe I try to drag them to it there is a cirle with a diagonal line across. HELP!

Suddenly I can't move files to trash, whe I try to drag them to it there is a cirle with a diagonal line across. HELP!

Back up all data. Don't continue unless you're sure you can restore from a backup, even if you're unable to log in.
This procedure will unlock all your user files (not system files) and reset their ownership and access-control lists to the default. If you've set special values for those attributes on any of your files, they will be reverted. In that case, either stop here, or be prepared to recreate the settings if necessary. Do so only after verifying that those settings didn't cause the problem. If none of this is meaningful to you, you don't need to worry about it.
Step 1
If you have more than one user account, and the one in question is not an administrator account, then temporarily promote it to administrator status in the Users & Groups preference pane. To do that, unlock the preference pane using the credentials of an administrator, check the box marked Allow user to administer this computer, then reboot. You can demote the problem account back to standard status when this step has been completed.
Triple-click the following line on this page to select it. Copy the selected text to the Clipboard (command-C):
{ sudo chflags -R nouchg,nouappnd ~ $TMPDIR.. ; sudo chown -R $UID:staff ~ $_ ; sudo chmod -R u+rwX ~ $_ ; chmod -R -N ~ $_ ; } 2> /dev/null
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V). You'll be prompted for your login password. Nothing will be displayed when you type it. You may get a one-time warning to be careful. If you don’t have a login password, you’ll need to set one before you can run the command. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
The command will take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear, then quit Terminal.
Step 2 (optional)
Take this step only if you have trouble with Step 1 or if it doesn't solve the problem.
Boot into Recovery. When the OS X Utilities screen appears, select
Utilities ▹ Terminal
from the menu bar. A Terminal window will open.
In the Terminal window, type this:
res
Press the tab key. The partial command you typed will automatically be completed to this:
resetpassword
Press return. A Reset Password window will open. You’re not going to reset a password.
Select your boot volume ("Macintosh HD," unless you gave it a different name) if not already selected.
Select your username from the menu labeled Select the user account if not already selected.
Under Reset Home Directory Permissions and ACLs, click the Reset button.
Select
 ▹ Restart
from the menu bar.

Pictures disappear with a diagonal line

I only work on raw files. Sometimes when I make any change, pictures disappear and you can only see colored points with a diagonal line along the image. When I make another little change my picture newly appears. Is it due to insufficient ram? Thank you.

You can delete the program off your computer, you cant run it.
Contact the developer, perhaps they have made a Intel processor one.
If you need to run this program, if you can reinstall it back into Snow Leopard, you can revert the machine back to 10.6.8 and install it again.
How to revert your Mac to Snow Leopard

Can't add music my iPhone from iTunes. When I try to drag a song over to my phone, I get the circle w/ the syncing line through it, but it does not update/load. [Manually manage music and videos] is checked. And, this is the only Mac I have ever used to

Can't add music my iPhone from iTunes.
When I try to drag a song over to my phone, I get the circle w/ the syncing line through it, but it does not update/load.
[Manually manage music and videos] is checked. And, this is the only Mac I have ever used to add music to my phone.
Also, just updated the phone's software today, and iTunes' software is already up to date.

Hi Gregg,
Have you tried resetting the device (nothing will be lost): Hold down the Home and Power buttons at the same time and continue to hold them down until the Apple appears (up to 30 seconds). Once the Home screen redisplays, see if your Music app is behaving normally.
Cheers,
GB

Just tried to upgrade to SnowLeopard with new software. iLife failed to download and now the computer will not start up--grey screen with lines going round and round in a circle. What can I do to get it to start up?

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Mac Pro - Mid 2010
Processor 2 x 2.66 GHz 6-Core Intel Xeon
Memory 8 GB 1333 MHz DDR3 ECC
Graphics ATI Radeon HD 5870 1024 MB
Software Mac OS X Lion 10.7.2 (11C74)
This is a brand new machine that I just purchased from Apple. It was delivered yesterday
The old computer is an old PowerMac G5, but my OS X install disc is a retail version of 10.5.
I also tried the OS X 10.5 install disc that came with my MacBook Pro (2.6 Ghz Intel Core 2 Dual).
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Wont start, stuck at screen with spinning gear...

title says issue... today when i turned on my ibook, that i just recently purchased used for school, i plugged in a flashdrive to get something off of it. now this is my first mac so i dont know the proper way of things with it yet. but anyway, my laptop froze while doing so, all i got was the rainbow pinwheel that i was able to move. so i forced it to shutdown by holding the power button. now when i turn it on, all i get is the loading screen with the little spinning gear under the apple logo. any ideas on what to do?

HI,
today when i turned on my ibook, that i just recently purchased used for school
Hopefully the install disc(s) were included when your purchased the iBook. If not, you can get replacement System Install & Restore CD/DVDs from Apple's Customer Support - in the US, (800) 767-2775 - for a nominal S&H fee. You'll need to have the model and/or serial number of your Mac available. You will need the discs in order to reinstall the Mac OS X.
Try resetting the PMU, instructions here. http://support.apple.com/kb/HT1431?viewlocale=en_US
Try starting up in single-user mode and then running fsck:
Resolve startup issues and perform disk maintenance with Disk Utility and fsck
Carolyn

Start up- none - screen with a circle with a diagonal line through it

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