I just got an AK31 rev3.1 motherboard with an Athlon XP 1700 and everything was working fine with Windows 2000. I only had my Geforce 3 Ti200 card installed and then I went to put in the Fortissimo 2 and it just locked up. After I put the card in, I went to access the drive where the drivers are and the computer froze. And now every time I reset it, the thing locks up right after the OS loads. When I remove the card, it works fine again. I'm using the latest 4 in 1 drivers, with SP2, and the PCI lateny patch. Nothing seems to work. I'm wondering if anyone else out there has this configuration working right. Thanks for the help.