Is there any way in windows xp to make the computer automatically shut all the way off after a period of inactivity? My sister has a bad habit of leaving the livingroom computer on 24/7 with her AIM going. She refuses to turn it off when she is done. The computer has some halfway serious cooling problems (Its in an antec Minuet case to give you an idea) and I have already burned out a power supply due to heat in the case. The computer is fine for general tasks, but when she leaves it on all night, the case gets quite warm. I have all the cooling fans that case will fit (CPU,Video Card, Power supply, and one small ass 40mm fan in the back of the case) Basically I just need to know how to get windows to shut it off after like 30 minutes of not being used, or I need to know a program (preferably freeware) that will do this. Thanks in advance.