Deep sleep...

Resoman

Registered
Howdy -

One of the issues I've encountered since upgrading to OS X Lion is that my iMac will sometimes go into a deep sleep, from which I can't awaken it. It's happened twice this morning.
I leave the computer for a few minutes and, when I come back, the screen is black and nothing I do wakes it up. The only way I've found to get a usable computer back is to hold the on/off button, shut it down and then restart. So, several minutes are consumed each time it happens.
Is there some kind of sleep mode that I don't know about? Does anyone have a suggestion?
Thanks,

Gary
 
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