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iMac screen will not come on after sleep

126 Views 1 Reply Latest reply: Dec 19, 2012 3:29 PM by thetimeparadox RSS
charlesfromaitkin Calculating status...
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Dec 19, 2012 12:23 PM

iMac screen does not come on after sleeping for a period of time - twice now from overnight. The back seems to be warm. I have to hold the on button until I hear the drive and system shut down.  Then after period of time it will start just fine.  ?????

iMac, OS X Mountain Lion (10.8.2)


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