On Feb 5, 2007, at 11:38 AM, Mark Des Cotes wrote: > I have an iMac G5 at home. Ever since we started using OS X, back > on our old slot loading iMac DV, we've (the family) been in the > habit of putting the computer to sleep when we were done with it > instead of shutting it down. That's fine, I know. But for some > reason the rest of my family has started putting the computer to > sleep each time they leave it. Even if they know they'll be back in > 10 minutes or so. I've often left the computer to go do something > or get something only to have my wife or one of the kids tell me > "you left the computer on". Waking it up only takes a couple of > seconds but can constantly sleeping and waking it do any harm? As the owner of a iMac G5 (20", iSight), I recently began to visit the Apple Discussion Forum for iMac G5, especially the "Using Your iMac G5" Category as follows, just to see what problems other owners have experienced: <http://discussions.apple.com/forum.jspa?forumID=881&start=0> I was quite shocked in reading the countless messages, complaining about power-related problems, including sleep-wake issues. If you have never done it, you may wish to visit that Forum, and possibly even sign up for automatic e-mail notification about your selected topics of interest. Depending on the specific version of your iMac G5, it may be covered under Apple's two "repair extension" programs. Fabian