I know that it works for you now, but since you have no AGP at this stage, you could improve your perfomance if you'd try
Option "NvAGP" "1"
it might not work, but then again it might. and if you really have some time to spare, you could try leaving that option out again, I doubt it'll work, but hey, you don't know if you don't try. (you never know it might work because of you installing on runlevel 1.
btw: I'd appreciate it, if you could tell me which AGP you're having.
is there AGPGART in your kernel? I'd very much like to know, since I have mdk9.1 also and I can't find it. (AGPGART should not be there).