after multiple formats and installations of xp pro my computer hangs after booting into the OS. Everything is fine after the first few days of installation. I am able to install programs, play games, restart and boot into xp like usual. All of a sudden after a few days I reboot for whatever reason and log into my account and everything hangs?. I can move the mouse and click the different icons but nothing comes up?the start button pops up my programs but none of them open and i can ctrl alt del for the task manager?..one time I logged in and quickly clicked my browser which opened but became unresponsive a few seconds later along with the rest of the system.. lately I have been using system restore to go back to the day before but I have been unable to pinpoint exactly creates the problem between the restore date and the date the system hangs?..any ideas??