It looks that you have 'via' driver and it doesn't see your card. To fix it edit your x.org conf (in /etc/X11) and make sure you have:
Code:
Driver "via"
BusID "PCI:1:0:0"
Option "DisableIRQ"
Option "EnableAGPDMA"
Don't know if you need those two 'Option' lines, try without them first.