You have a VIA graphics chip?!?
I didn't know that!
My dad's computer has a VIA chip and I recently re-installed Windows XP Home W/SP2 and it was installed...
What model is the chip?
Perhaps I could find some drivers for it.
P.S have you tried letting Windows go online to find the drivers?
Try to re-install the graphics card but this time let Windows connect to the internet to try to find drivers for it...