Hi Jamie, The preference file you'll want to delete is com.apple.windowserver.plist located in /Library/Preferences. After that, reboot, and your system should behave normally again. Some users also reported the need to zapp the PRAM (restart holding command+option+P+R for four chimes) although I didn't have to in my case. From what I gathered from other affected users, deleting the aforementioned file after using file sharing fixed the problem. Jason On Thursday, December 19, 2002, Jamie Saunders wrote: > All of the sudden, my ibook (white, 2 usb) will not sleep. Is there a > preferences file that i can trash to clear this up? or is it something > else? i'm running 10.2.2 and have checked to see if file sharing, etc. > is on. That's one of the things Apple Help says will keep it from > sleeping. Any other ideas? > _________________