My iMac turns on and about 10 mins later it glitches and freezes and then the screen turns blue/green/white

My iMac turns on fine, but about 10 minutes later I can't use the mouse as the whole thing freezes. Sometimes it continues to move the mouse for a while but then glitches the screen (see first image). After that my screen turns blue/green/white and even purple as a solid colour (second image - changes to a different colour). I'm wondering what the problem is and can I fix it myself?

I have a similar iMac.
1. Be sure you have 4 GB of RAM.
2. Create a new USER wih Admin Rights
3. Don't add anything to the start up sequence.
4. Update all your apps. This is a big problem. Do it.
5. Use Font Book and verify your fonts. Delete any broken fonts.
6. Download and install Applejack. If you have to force a restart, press and hold command s. A black screen will appear. Finally it will say something about Applejack. Type applejack and run #1 and #2. Restart.
Don't run Applejack outside of safe mode. (Command s)
Come back and let us know how it is working.
;-D
DL Applejack: https://www.macupdate.com/app/mac/15667/applejack

Similar Messages

My itouch won't turn on. All that shows is the apple icon and then the screen goes blue to white. Is there a way to fix this or is my itouch unfixable? HELP ME!!!

My itouch won't turn on. All that shows is the apple icon and then the screen goes blue to white. Is there a way to fix this or is my itouch unfixable? HELP ME!!!

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iPod fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

When I get to the login page on my macbook, I type in my password and it starts to load, but then the screen turns blue and it goes back to the login. What should I do?

I was having some problems with my mac, safari and itunes was freezing alot. I have to force shutdown and when I tried to start up again i get to the login page, type in my password and it starts to load, but then the screen turns blue for a few seconds and it goes back to the log in screen. What should I do?
Please Help!!

Somewhat similar problem:
Put in the password, hit enter, the screen goes blue for half a second, then goes back to login screen and carries on logging in as usual. Drives me mad. It doesn't happen with a fresh Lion installation, nor if booted into safe mode. On the machine in question it also happens to new user accounts.
I've removed all login items, including Startup Items and Launch Demons (pun intended) and Agents, I've compared system login plists with a fresh Lion installation - can't see differences. I've removed Little Snitch and PeerGuardian (no more third party kexts).
@Carolyn: I've done disk maintenance with DiskUtility and fsck and even DiskWarrior, cleaned caches, etc. etc.
Any ideas would be gratefully received.
Sorry for trying to hijack the thread (as it's not about Lion), but it seemed dead anyway.

When I get to the login page on my macbook, I type in my password and it starts to load, but then the screen turns blue and it goes back to the login.

When I get to the login page on my macbook, I type in my password and it starts to load, but then the screen turns blue and it goes back to the login.
Iv tryed this numerious times still keeps going back to pasword. Can not get any further. Tried restart holding shift key.. still nothing. What do i do?

Thank you for your help.
I couldnt get to the hard drive/ desktop. Soft login not even working. So i could not do any of that.
In the end i took it to Apple and its actually the hard drive on its way out. A common issue with that series of Mac. Funny seeing i dont use this mac much. However being 2.5 years old and out of warrently, Apple have recognise this issue with this series/ Model and installing a new hard drive at no cost.
Very luck and greatful. And not feeling so dumb that it was something i did or could troubleshoot myself.
Hope this helps others that it just might be your hard drive failing.

I turned my iphone5 off now it won't turn back on, it keeps giving me the loading sign then will turn on then the screen goes blue and turns off again and it repeats that! What should I do?

I turned my iPhone off because it was being slow. I went to turn it back on and it WON'T turn back on. It will do the loading to turn back on then show me the apple that its back on then the screen turns blue then turns off and goes to the loading page. What should I do? It's been like this for a hour now..

Try these steps: http://support.apple.com/kb/ts3281

Just updated my Ipad operating system and one of my apps starts but then the screen turns white, with only the advertisment at the top showing

Just updated my Ipad operating system and one of my apps starts but then the screen turns white, with only the advertisment at the top showing

The normal suggestions.
Close the app,off fully. Double tap the home screen then touch and hold any of the icons on the task bar until they jiggle, then close them all off by touching the - sign.
Then reboot the pad and try the spp again. If same issue, delete the app, then reload it. ( no charge). You may just have a bad copy. If continues, write to the developer, they may need to do an update. I have an older version of the same app and it works fine.
Since yours is the ad supported version, they are maing real sure you see the ad. Is it as simple as you need to click thru the ad to get to the game?

Hello I just found a problem with my Ipod nano 6th generation. It worked fine an hour ago but then the screen turned a dark grey. Did the restore through Itunes and then it went white. But now it's totally unresponsive and seems to be off even when it is

Hello I just found a problem with my Ipod nano 6th generation. It worked fine an hour ago but then the screen turned a dark grey. Did the restore through Itunes and then it went white. But now it's totally unresponsive and seems to be off even when it is plugged into itunes. Can't even restore it. I get Error 1415?

Hi clarity,
Welcome to Apple Support Communities.
You may want to first try removing and reinstalling the latest version of iTunes by following the steps in this article:
Removing and reinstalling iTunes, QuickTime, and other software components for Windows Vista or Windows 7
http://support.apple.com/kb/HT1923
If you continue to receive the error message when connecting your iPod, see this article for more troubleshooting tips:
iTunes for Windows: iTunes cannot contact the iPhone, iPad, or iPod software update server
http://support.apple.com/kb/TS1814
Best,
Jeremy

My macbook shows up the apple at startup and then the screen turn blue

As I said, when I turn on my macbook, the apple appears and then the screen turns blue and stays like that.

I have a Macbook (purchased in september 2008) in India. I got a blue screen error in 2010 when it was under the Apple care protection plan. I took it to the service centre and they replaces the Logic board to sort this error. After that the blue screen error appeared in 2011, 2012 and 2013. For the past 2 years, I have taken in the macbook atleast 5 times for the same error and the service centre had been re-formatting it and giving it back to me. But the problem kept re-curring. No proper diagnosis is being given at this apple authorised service centre.
I finally called up Apple tech support, who made me give the machine back to the same centre. Techsupport asked them to perform some check measures and finally decided that the OS being installed in my machine was the wrong one.
So the Service centre installed the original one from the CDs I had.
But this is no resolution as no one is willing to comment on this service measure nor is there any assurance that this will not happen again.
I have spent more than 15,000 rupees on the repairs for the past 2 years and am fed up of this.
I came to know from an Apple source that in the US, Apple has no "repair" policy and in the event of such a case, replaces the machine.
Can anyone here guide me on this please?
I will be grateful for any and every input.
The Apple authorised service centre is TRESOR SYSTEMS in Gurgaon, Haryana, India.
thanks a tonne
Shalini

TS1286 what do i do when i charge my ipod and it turns on then the screen turns white then cuts off ?

what do i do when i charge my ipod and it turns on then the screen turns white then cuts off ?

Try #2 and #3 in link below. If neither work, you most likely have a hardware issue.
Basic troubleshooting steps
17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101
 In Memory of Steve Jobs 

HT1349 i have just bought an ipad2 from usa. now i am in dia. i am a first timer user of ipad. i have charged for three hours, when i start iti.e. on the device it shows a plug in icon with itunes. then the screen turns black. i am not able to use the dev

i have just bought an ipad2 from usa. now i am in india. i am a first timer user of ipad. i have charged for three hours, when i start iti.e. on the device it shows a plug in icon with itunes. then the screen turns black. i am not able to use the device. kindly help

You need to plug the iPad into your computer that has iTunes installed on it, and activate it.
The User Guide would be good for you to read:
http://support.apple.com/manuals/#ipad

Today, my iPad2 wouldn't delete mail. Then the screen turned black. I turned the iPad2 off then on. Got black screen. Tried backing up to iTunes. Got the message "iTunes cannot connect to this iPhone because unknown error occurred (OxE8000065). Help

Today, my iPad2 wouldn't delete mail. Then the screen turned black. I turned the iPad2 off then on. Got black screen. Tried backing up to iTunes. Got the message "iTunes cannot connect to this iPhone because unknown error occurred (OxE8000065). Help, please.

Did you try restarting it by holding down the hold and lock button at the same time until you get the apple logo? If you already tried that then you should try putting it in DFU mode and doing a restore by following these instructions- http://www.iclarified.com/entry/index.php?enid=1034

I started making a movie and all was well. I added a few more pictures and some sound and played it back. It plays so far and then the pictures break up into colors and then the screen turns green. The sound continues.

I am making a movie from still pictures. I used no theme and then started adding pictues. When I played it back, all was well. Then I added a few more pictures and some sound. When I play iot back it plays just so far and then the sound continues, but the screen turns green or the pictures break up into colors.

Sorry, everyone. I think I may have figured out what it was all down to...........
I had left the IDE ribbon cable plugged into my third HDD, with the power cable unplugged. I did this so as not to endanger my years of work on the third drive, until Windows had setup. I have in the past, accidentally chosen the wrong partiton to format, so this seemed a good way to avoid it from then on.
This was not a problem on my old system, but it seems this system doesn't like it.
I must have left the drive completely unplugged, the times Windows did setup. Amazing really. I couldn't see the woods for the trees.
Anyway, I'm sorry to have bothered everyone with my problem.
Cheers
Marcus
edit : Sorry Syar2003, I didn't see your reply until I had posted mine. Many thanks for taking the time to try and help me, it seems as though I may have sorted it now. I am using IDE drives until I can afford SATA. But many thanks for the heads-up on the NF4-SATA compliance, I'll be sure to bare that in mind.
I didn't actually check the NVRAID/IDE ROM version before updating the bios, so I have no idea if the revision was changed when Liveupdate flashed the Bios, I'm afraid. I didn't know they would be updated at the same time.
Again, cheers
Marcus

Down for 5 mins and then the screen came blue so how can i do for it

hey , today my computer screen freesed for a while so i shuted down for about 5 minutes and i started it again but it the screen turned bleu please help me
thank you !

Try the following:
- A reset. Nothing is lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Restore from backup
- Restore to factory settings/new iPod.
If you still have the problem that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order

When I type in my password into the login screen I get the rainbow pinwheel and then the screen turns gray and goes back to account selection... How do I access my account?

Today I was doing my chemistry homework when all of a sudden my mid 2011 MacBook pro running Lion 10.7.4 started going very very VERY slowly to a point where it was unusable. I restarted my computer and went to type in my password. When I did this, the computer recognized the password and began to boot yet the pinwheel came on and the screen turned gray and went back to the account selection screen. It continues to do this everytime I enter my password and I can no longer access my account. How do I fix this.

You can take some of the steps here, #4, #5 or even trying a #18
Step by Step to fix your Mac
but I suspect your going to first have to create a data recovery drive
Create a data recovery, undelete boot drive
to get your data off the machine,
then do a #20 to eliminate the bad sectors as that's why your getting the "pinwheel" it's getting a delay reading from the drive, right when your trying to log in too, what a bad spot for it to happen.
Step by Step to fix your Mac

My sons Ipod touch would start charging and then the screen turns white and it freezes. I am trying to figure out how to reset it, but it is not letting me.

My son's ipod touch is not charging because the screen turns white and it freezes up. Trying to reset it and figure out the problem but don't kno what to do.

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

My iMac turns on and about 10 mins later it glitches and freezes and then the screen turns blue/green/white

Similar Messages

Maybe you are looking for