page file I was told to try and not go over 500 but ive got mine set at 768 and it seems to do ok..some one in here has it set at 2gig just read it and cant remember lol Hep upgrading to a p4 more than likly means for you a new system :( .you would need a new power supply, cpu/fan, motherboard and ram everthingelse you could keep,unless you have built on video,, would get a bit $$$

"Reinstall Windows" is NOT a troubleshooting step.