Computer freezes after leaving for 10 or so minutes... Anyone know?

[aphex]

Im guessing it has something to do with the power management functions...

When using windows xp and i leave for 5-10 minutes, when i come back the screensaver is frozen and the mouse wont move. Only way to fix it is by restarting. What should i check to fix this??

 

[DaiShan]

shoot us the rest of the specs, and check my post in your thread in ATOT