These settings are stored in Library:Preferences:SystemConfiguration:com.apple.PowerManagement.plist Do a Get Info on it and see the exact time it was last updated; comparing it with the system log may give you a clue as to what is going on when it is changed. You might also try locking this file in the Finder, and then restarting. This may prevent its being changed. On Sat, 7 Feb 2009 18:40:05 -0600, Ed Gould <edgould1948 at comcast.net> wrote: > I have "something" that is changing my energy settings. I *think* its > at boot up time (but I am not 100 percent sure) as it seems to be > changing after it as well.