I have been to Microsft's website and they know nothing of this particular stop code: stop: 0x0000007e (0xc0000005, 0xf83651c7, 0xf8aebc58, 0xf8aeb954) Additioinally, I get an associated filename Blwc66.sys. This is a file that no one in the world seems to know exists. Usually when I type in a filename on Google, I can get something about the file. This one is the only search I've ever typed and got absolutely nothing. This stop code happens in the middle of the day after the computer has been on for a while. Recent upgrades/updates have not fixed the problem and nothing has been added to the system since it was first set up. The computer is running XP Pro SP2 and is part of a Novell network. It is not the client because the client was fine before the BSOD started and has been upgraded and the BSOD still happens. Any ideas would be appreciated.