I have windows xp pro. I never had a problem until yesterday. now my computer is starting to go slow. alot slower than what it used to. when I move my mouse it will skip on the screen. when I listen to music it keeps slowing down, speeding back up and slowing down again. programs take a long time to load up. so does windows itself. I did windows scans, defragged, virus scans with AVG free *dont have money to pay for a virus protection program* and everything is fine. no problems. I have no clue wtf it can be. can someone help me? is it just my harddrive dying on me? or even my whole computer dying on me? is there any programs out there that will let me test my computer to see if thats it or something? anything?