Ever since I installed Lion my screen flicks

It happens when booting, launching applications ~ Any idea why? I wonder if there's something I should worry about considering my AppleCare ends in June 2012. Perhaps it was a latent problem with SL but it is amplified with Lion? In any case it was never noticed with SL.

What type of Mac do you have and is it the Extended AppleCare?
It could be indiciatve of a hardware problem. It couldn't hurt to call AppleCare and report the issue.
They may have you run some tests before suggesting repair. If a bad component is detected, they have you bring it/send it in for service. If it is the Extended AppleCare and it is a Desktop model, if you live within 50 mi. of an Applle Store you can get on-site service.

Similar Messages

  • Ever since I installed Lion my internet connection comes and goes, has anyone else had the same experience. have rung Apple Care and they have reset my connection but it is still happening

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    Thanks so much but none of that helped.  It was driving me crazy because it would back up another external drive.  I just changed the name of the drive from iPhoto/iTunes Library to Media Libraries and IT WORKED!! I guess for some reason it didn't like the drive being called iPhoto or iTunes ???? I don't understand but I have tried so many solutions and exchanging things out but the name change did it????!!!
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    Mac OS X: Starting up in Safe Mode

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    Hi,
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    Still working just fine here.  Try reinstalling Steam.  I did have a problem with it at some point (not linked to the upgrade to Lion), and just threw Steam in the trash and downloaded a new copy.  That fixed it for me.

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    Since I installed Lion on my macbook the LED light does not pulse when I close the screen - the sleep function does not work neither when chosen after pressing the button nor chosen in the apple menu..

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    How come, ever since I installed Mountain Lion, my computer is slower???

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  • Ever since I installed apple lion

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  • My Macbook pro often won't start up since I installed Lion, and I have to shut it down using power button. My desktop icons don't appear and the dock won't open. I only have the little circle of color spinning endlessly. What's wrong now!

    My Macbook pro often won't start up since I installed Lion, and I have to shut it down using power button. My desktop icons don't appear and the dock won't open. I only have the little circle of color spinning endlessly. What's wrong now!

    Please read this whole message before doing anything.
    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
    The purpose of this exercise is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login. Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. The instructions provided by Apple are as follows:
    Be sure your Mac is shut down.
    Press the power button.
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    Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
    Note: If FileVault is enabled under Mac OS X 10.7 or later, you can’t boot in safe mode.
    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
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    Test while in safe mode. Same problem(s)?
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  • Ever Since I installed 10.5 My computer seems to be running slow

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    Sadly, mine has not fully recovered. It was abysmal when I first installed Leopard - it tried to do backups continuously. That went on for a week, and nothing else would run. programs would open partially and just hang, or freeze, or go stupid.
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    I have also had to turn off the energy savers, both CPU and screen. With those on, it would sometimes not wake up without a hard reboot.
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