My iMac screen constantly goes black. (5 times while posting this message)
I have tried to set the Display sleep to never -which does not help.
The iMac is less than an year old.
Please advice what to do????
Take a look at this link, http://support.apple.com/kb/HT3964
Thank you for the quick reply.
I have tried to reset the SMC but the problem re-appear (i.e. after a while the iMac again turns black)
Any other suggestions?
Try running Apple Hardware Test on your system, Take a look at this link, http://support.apple.com/kb/ht1509
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