Odd Rectangle Appeared On Screen

Discussion in 'MacBook Air' started by may6100, Aug 14, 2014.

  1. may6100 macrumors newbie

    Joined:
    Aug 14, 2014
    #1
    Hello, I am new to this site. I have been having problems with this little rectangle block in the upper lefthand corner. I have tried restarting my computer, nothing has helped. Do you have any ideas of what is wrong?

    **I did not drop or damage my computer in any way.
     

    Attached Files:

  2. scaredpoet macrumors 604

    scaredpoet

    Joined:
    Apr 6, 2007
    #2
    Two possibilities: Either the OS install is corrupted, or the GPU is going bad. Since it looks like you can capture what the rectangle looks like via a screenshot, that rules out the LCD panel or its connectors being a problem, though you can further rule it out by connecting to an external monitor and see if the rectangle is still there.

    Is your Mac still in warranty?

    First thing I would do is boot into recovery mode. Is the rectangle still there? If not, it's the OS. Try a clean install.

    If the rectangle is still there, the issue is probably hardware, and could require a logic board replacement.
     
  3. lungbutter macrumors newbie

    Joined:
    Jul 2, 2014
    #3
    Whoa!

    It appears Safari may be corrupted. This is from an early version of Mac OS but read through it and research it to determine if it applys to you.

    http://support.apple.com/kb/PH6439

    Let us know what you decide to do.
     

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