I keep getting this stop error and Guild Wars was working fine before the update on the 23rd. This only happens with Guild Wars too. All my other games work fine. Anyways, I get to the login screen and at different times (it's never at the same point) just...bam! BSOD with the BAD_POOL_HEADER ***STOP 0x00000019 stop error. It's absolutely horrible!

I've been talking with support since then and they still haven't reached anything.
I'm using a GeForceFX 6800 Ultra 8x AGP card. I'm too poor for PCI express.