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What is causing the glitch in my screen?

2983 Views 2 Replies Latest reply: Jul 4, 2013 6:33 AM by Mike Sombrio RSS
cha89 Level 1 Level 1 (0 points)
Currently Being Moderated
Jul 1, 2013 5:24 PM

Screen shot 2013-06-07 at 9.38.35 PM.png


My computer has started doing this strange thing where suddenly pieces of all of the tabs/programs I have open make a patchwork on my desktop. At first it was only doing this when skype was open (I can talk for 10-15 minutes before my call is dropped and this glitch happens) Sometimes patches of other tabs show up on my desktop and I can still use my computer and click on desktop files, and other times I have to completely reboot my macbook.

MacBook, Mac OS X (10.7.5), 2008 Macbook
  • sterling r Community Specialists Community Specialists (3,240 points)
    Currently Being Moderated
    Jul 4, 2013 6:09 AM (in response to cha89)

    Hello Cha89,


    I suggest a couple things. First reset your PRAM using this article.

    About NVRAM and PRAM

    Resetting NVRAM / PRAM

    1. Shut down your Mac.
    2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
    3. Turn on the computer.
    4. Press and hold the Command-Option-P-R keys before the gray screen appears.
    5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
    6. Release the keys.

    After resetting NVRAM or PRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information. If issues persist, your Mac's logic board battery (not a portable Mac's rechargeable battery) may need to be replaced. The logic board battery helps retain NVRAM/PRAM settings when your computer is shut down. You can take your Mac to a Mac Genius or Apple Authorized Service Provider to replace the battery on the logic board.


    If that does not resolve your issue, then reset your SMC with this article:

    Intel-based Macs: Resetting the System Management Controller (SMC)

    Resetting the SMC on Mac portables with a battery you can remove

    Note: Learn about removing the battery on MacBook and MacBook Pro.

    1. Shut down the computer.
    2. Disconnect the MagSafe power adapter from the computer, if it's connected.
    3. Remove the battery.
    4. Press and hold the power button for 5 seconds.
    5. Release the power button.
    6. Reconnect the battery and MagSafe power adapter.
    7. Press the power button to turn on the computer.





  • Mike Sombrio Level 6 Level 6 (9,070 points)
    Currently Being Moderated
    Jul 4, 2013 6:33 AM (in response to cha89)

    I would run the Apple Hardware test if the SMC and pram resets don't help.


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