Many thanks to oga@ for this. I have been using this patch for at least a month now and not had any issues.
Relevant bits of dmesg: pchb0 at pci0 dev 0 function 0 "NVIDIA nForce3 250 PCI Host" rev 0xa1 mmuagp0 at pchb0: 1 Miscellaneous Control unit(s) found agp0 at mmuagp0: aperture at 0xf0000000, size 0x2000000 I also swapped out the Nvidia GeForce 7800 card and put in an ATI/Sapphire X1950 Pro (all AGP) and 3D worked, even though it was a little choppy, but oga@ said that was more down to the version of the intel driver in Xenocara than anything else. Tom
