HT201321 Sometimes I cannot wake my IMac (Lion) after putting it to sleep and I am forced to restart. Any help much appreciated

Ocassionaly I cannot wake my iMac and I am forced to restart.

Hey aristoklis,
To start off, I would try resetting the SMC to see if that resolves the issue. You can read how to here:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
Have a great day,
David

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But you are not done.
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HT201321 Sometimes I cannot wake my IMac (Lion) after putting it to sleep and I am forced to restart. Any help much appreciated

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