i have a dell dimension e310. 2.9 ghz. 4 gigs of ram. windows xp... umm so just recently we took it into the shop and they re-installed the operating system. because we thought it was infected with virus' or w/e.ever since, its been running slow. it boots up ok...and for the first few minutes its running...not fast. but not too slow. and then it kinda just freezes. i can move the mouse but if im running windows explorer(havent been able to re-install firefox) it kinda just sticks there. i installed norton 360 and it says the pc i running fine. i dont know what to do about it. i have to wait an hour just so windows explorer can close..very frustrating...can someone help me troubleshoot this? thanks in advance
-Mike
-Mike