I have a computer with XP on it that has been fine for several weeks, then seemingly with no cause it began to lockup when idle or in basic windows tasks. It is fine playing games for hours, but try and run notepad and it locks solid! I have cut all startup programs and scanned for viruses and all to no avail, and the next step is format and reinstall (likely 2k because XP seems to me to be seriously bug ridden). Does anyone have any clue how to solve this in the 11th hour before I blast out the whole hard drive?