Ever got a had a Windows 2000 or later system blue screen? The information displayed in such "STOP messages" can be cryptic to decipher to say the least. Not many of us are geeky enough to use a kernel debugger to analyze a memory.dmp file and figure out what went wrong. If you're not inclined to do that (and don't want to pay Microsoft PSS to do the same) then try out some of the following steps and you may be able to resolve your problem:
Uninstall the last device you installed.
Roll back a device driver you updated recently.
Open up your box and reseat PCI cards and memory.
Run diagnostics on your hard drives.
Uninstall a recently installed hotfix or service pack.
Roll back the configuration of your system using Last Known Good or XP's System Restore.
Reconfigure your BIOS settings to their original values.