What speed AGP is it? (the gfx card)
4x, Ti 4400
Should be less of a problem then as the card is not AGP3.0
and which agp drivers are you using? If you are using an AGP 3.0 card then things may get
interesting as the standard
kernel doesnt' support them yet,
It worked perfectly with a Abit KG7-RAID
Which is an AMD 761 based board, these have AGP support in the kernel.
its the 31-23 i think. 31-something. the kernel module is called NVdriver
Try using the newer drivers, they are up to version 41something something....
You could try the disabling AGP to start with though, as thats only 1 line in the config file and may narrow it down a bit.
Adam