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XFX ATI HD5770 - black flash / flickering


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My display flashes black randomly after it has been on for some hours and sometimes the image splits up in six. At first i thought the Apple Cinema display was the problem (there's a thread about it in the apple support forum), but the flashing did not occur when used with a unibody Mac with nvidia graphics.


It appears that the problem has disappeared in Windows after updating the drivers, as reported else where.


Has anyone heard of this problem on OS X? I guess the easiest fix might be to get another HD5770 or maybe an Nvidia. Which Nvidia cards in this performance class works best?

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