USB optical mouse keeps dying

[Claude Jones]

I have a MS optical USB mouse. After a time, once the screen save has 
kicked in, the mouse dies. The light goes out, and even tho the keyboard 
still works and returns the screen, the mouse continues to sleep. Only 
unplugging it and plugging it back in revives it. Does anyone know how 
to fix this? I have an almost identically configured box at work and it 
doesn't happen there.

-- 
Claude Jones
Bluemont, VA, USA