On 1 Sep 2005, at 20:12, Michael Winter wrote: > > >> On Aug 31, 2005, at 11:27 PM, Jan Melichar wrote: >> >> >> >>> Despite my best efforts my Mac (G5) will not automatically go to >>> sleep in response to the preferences I have set. In the process >>> off trying to track down the problem eventually I closed all >>> application but still no sleep. Disk Utility reports no problems >>> and Permission have been repaired after installing the latest >>> update to Tiger. >>> > > Its a long shot, but have you disconnected all peripherals No because it does not seem practical to be turning off hard drives, scanner and so on. If I wanted that much 'closing down' I might as well put the computer to sleep via the Apple menu which in answer to the question below it does and stays asleep till woken up. > -particularly any network connections (including wireless) and > anything else that may occasionally create some activity? Ditto > Even a misbehaving mouse or keyboard could be a problem (or a > misbehaving pet messing with the mouse or keyboard). Ditto > > One other question, can you get it to sleep by selecting it from > the Apple menu? If so, does it stay asleep for the 15 minutes or > so of inactivity you have set to make sleep on its own? I'm just > trying to determine if its not sleeping because it's sensing some > time of activity. Incidentally the G5 is a @GHz dual not the apparently troublesome 1.8. Sound as if this is one of those things one will have to live with. Thanks for the suggestions Jan