When is it logging off? To change what windows does after specific idle
times, go to Control Panel, then double-click the Power icon.
If your computer is requiring you to log back on after your computer comes
back from standby or hibernation, click the Advanced tab, then uncheck
"Prompt for password when computer resumes from standby".
If your computer is requiring you to log back on after you resume from a
screensaver, right-click the desktop and click "Properties". Click the
"Screen Saver" tab. Uncheck "On resume, password protect".
Stephen