HT203161: Isolating issues in Mac OS X

Learn about Isolating issues in Mac OS X
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Q: screen test for MacBook Air

I've started getting random blocks of pixels appearing on the screen. Nothing serious but not sure if it is a hardware or software issue. Is there a way to figure this out?

MacBook Air, OS X Yosemite (10.10.2)

Posted on Jun 1, 2015 6:02 AM