IMac wakes from sleep when touching nothing.

So my iMac wakes when I just put it on sleep mode. Is it the update? idk please help!!!! Thanks

Hello,
Most likely causes are USB devices that are plugged in, or scratchety Mice/Keyboards, but...
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
http://support.apple.com/kb/HT3964

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IMac wakes from sleep when touching nothing.

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