I have a compaq presario 2100 and i had been experiencing frequent crashes caused by an "unknown device driver". This was annoying but i would just reboot and it would be fine for awhile. I tried reinstalling and or updating all the device drivers that i though could be the cause of the crashes, then yesterday i went to use my laptop and it crashed and no longer will load windows. It will not load in safemode and i can't reinstall xp either i get to the point where you press enter to install a fresh copy of windows and it says that it is searching for previous installations then it crashes and displays the same error message that i get for every attempt to boot in any form. The error is Bad_pool_caller and the stop: 0xC2. I have also tried moving the ram around and i dont think that its the problem. any ideas? thanx