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24" LED Cinema DisplayPort goes black every 30 minutes

My LED Cinema DisplayPort with ATI Radeon HD 5870 goes black every 30 minutes with OSX Lion, and Moountain Lion

Any help please?

macPro 8 Nehalem 09, Mac OS X (10.5.6), Apple LED 24"

Posted on Aug 2, 2012 1:01 PM

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24" LED Cinema DisplayPort goes black every 30 minutes

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