monitor falls asleep while in game play

While playing Dark ages of Camelot or any other game. My
monitor will go to sleep during the game .5-4 hours into
the game. Also my computer will go into a loop and crash
at the same time. This does not happen during any other
application. Movies are fine and never crashes while
playing them.

I have a Demension 8100, XP Pro, Trinitron monitor, Nvidia
Geforce4 ti 4600, 512 ram, Bios xp version.

Ok I have tryed to fix this in every way I know of. PLZ
HELP!!


I have wiped my comp 2 times and reinsalled everthing.
Bios, chipset, vidio card, used other monitor. Nothing
helps.

I have checked my power savings and it's turned off.

Any help would be GREATLY appreciated.

Froggy
..