I'm sorry if this has already been addressed, but have you tried unchecking "Automatically reduce the brightness of the display before display sleep" under System Preferences --> Energy Saver--> Options tab? Michael > On 14 Feb 2006, at 5:09 AM, Richard Gilmore wrote: > >> I'm on an Intel iMac with Tiger and what the screen does is dim >> after about >> 2 minutes of being idle. I don't want it to do this. > > > I think there was a discussion of this on this or another list not > long ago. I remember the conclusion being that this is a bug in > Tiger. > > My machine is not consistent about this. It will do it sometimes > and not others. The only factor I could nail down was that it will > do it more often when the machine has not been booted for a while.