I play Quake III Arena: Excessive alot now that Counter-Strike just totally sux. When I play Excessive I play for atleast 1.5 hours or more everytime. It's just very addicting. Although when I exit Quake III and it tries to load the desktop I get like a black box in the upper left area of the screen that looks like Quake III unloading from memory or such. Usually I then start moving the mouse and click a couple times and I then hear a 'beep' and then I know Windows XP Professional has locked up. I cannot get this to happen everytime; It happens when it wants to and I cannot recreate it on que if asked to. Although I know there is something wrong here.