Well not freeze exactly. It's a HP DC 5000, desktop. 2.8 Intel processor. XP Pro SP2. The problem is when it's running the cpu usage is quite high ( 15% - 35% ) average. but it seems to get stuck. The same time after time, the same sound from the HD each time. Accessing Task Manager brings it out of it for a little while, but it sticks again. Could this be because there are bad sectors on the HD. any help most appreciated.