I asked a softie about that one and their answer was to reboot. Nice.
But resume from sleep or hibernation issues are classic and EXPENSIVE to fix. I usually work my list of checking motherboard, audio, video drivers first and hope it's one of the common drivers.
Good luck,
Bob
Windows XP - As long as I don't go into Hibernation, my screensaver works just fine. After 5 minutes of inactivity, it starts as expected.
However, if I send my system into hibernation, then come back and restart it later, the screensaver never starts after periods of inactivity.
This behavior just began recently and I'm thinking that it may be tied to a recent XP update.
Thanks for any suggestions,
Tom

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic