I have an emachine T2080 w/WinXP. When the computer is at my house and when it was at my g/f house it locks up and you have to hit c-a-d and close the task manager and then continue with what you were doing untill it happens again. At my parents house the computer was fine, never locked up. When we took it to bestbuy it worked fine for them and they said it must be the surge protector or something with the power. Bought a new surge protector and it still locks up. Anyone have any other ideas? Could I or Can I replace the power supply thats inside the computer? Or is that even the problem since it works fine at my parents house?