i have my prefs set to start screensaver at 3 min, shut off monitor at 10 min and sleep the computer at 45 min. but it goes to sleep early, never timed it, but im guessing in the 30 min or so range. i dont really know what i could reset or change other than the energy saver in the sys prefs. its not that big of a deal i just wonder why it could be doing it. any thoughts thanks!