Shutdown Mystery

[eltrain]

Hello all,
I've been having some trouble lately with shut downs with XP Pro. It seems that about every other time I shut down from Windows, I get a BAD_POOL_CALLER bsod. It happens only with complete shut downs, never restarts. It also happens really fast after I confirm the shutdown, as in maybe a second or two, and a regular shutdown for me usually takes between 10-15 seconds. I've read that these are usually caused by bad drivers or software, but I haven't installed any new programs or hardware recently. I've also heard that it could be caused by NERO, which I have, but I don't use often and definitely not every time I get the error. If it's relevant, I move my computer around frequently and usually my onboard network card isn't detected until after I've powered up and done a restart. I've got the latest drivers for it, but it still seems to get lost whenever my computer is unplugged or after I've opened the case. Weird. I'm really open to suggestions on this.
Specs:
Albatron PX915-P Mobo
2.8 G P4
onboard Marvell Yukon Gigabit network adaptor
onboard sound
120 gig WD ATA hd
1024 MB PC3200 ram
Sapphire X600Pro
Chenbro Xpider Gaming bomb case

[elroy]

If you think the network card is some how connected to the problem, remove it and run the pc without it for a while to see if the problem is gone.