Hi there, My iMac turns on automatically sometimes. Though it has only happened a few times at random intervals. I'm wondering what might cause this. I have checked the Energy Saver options (Start up or wake) and the power up options are turned off. Typical example that happened last night. I Shut Down, and this morning at around 9am it turned on. Hmm, what else can I tell you. It has happened before where I unplug it (after shutting down) and then plug it back in and automatically after plugging it back in, though again, not all the time. And I have that option (Restart automatically after a power failure) in the Energy Saver turned off. The only other thing I can think of is that I have the plugin Alarm Clock 2 that is supposed to wake my computer from Sleep, but I read on their website that it does not turn your computer on if it has been shut down. And, of course, I have it set to go off everyday, and this hasn't been happening everyday. I am running: iMac 20" 2.33 Core 2 Duo Version 10.4.9 Any ideas what this power on thing might be? Thanks!