Control Panel -> Power Options -> Advanced -> Uncheck the option to ask for a password upon resume.
i've recently had to reinstall windows and now when i resume from hibernation
it wants me to put in my password.
its not set to password protect on screensaver and i couldn't think of anything else
P4 Celeron 2.2 - 512MB - OPUS 250 - Audigy SE - BU353 - HQCT - No Speakers though :-(