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Gen

macrumors 6502a
Original poster
Jul 15, 2008
902
223
Late 08, 2.4 15"

Just did a fresh install and only moved over my music and document files, no applications or system settings - and my screen still flashes.
It's like half a second long and only happens on the top part of the screen, a quick black flash.

Also, whenever I play games in bootcamp, the screen flashes everywhere - only when I play games though. They're horizontal lines.
 
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