My iMac will not go to sleep when I press the rear power button.
It will, however, if I press sleep in the apple menu using the mouse. This has recently started since I upgraded the memory and ran disk doctor. I know the rear button is not broken as it feels fine and powers up the computer when switched off.
I have researched this and cannot see an answer for specific problem. Any help appreciated!
First I would personally get rid of Disk Doctor, Apple has made every effort to fight Malware, Spyware. First and Formost Viruses do not affect Mac's however if you have Windows installed that could change but I would come on here and check the users and what they use.
If you simply walk away from your Mac it will automaticly go to sleep and a simple click of your mouse will wake it up.
Cheers
Don
Most users leave there computers on 24=7 They go to sleep on there own and you can set when the computer goes to sleep when not in use.
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Try DFU mode and then restore
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
Try on another computer.
Also see:
https://discussions.apple.com/message/12690674#12690674
https://discussions.apple.com/message/13032101#13032101
Last, make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
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