i aplied the agp-patch (little modifikation of some paths) on the debian/unstable kernel 2.4.20-xfs. sound, nvnet and agp work fine.
before i tried the kernel from www.kernel.org
2.4.21-rc1-ac3, but with this kernel i got several errors ... the nvnet loads fine, but no ping cames back, when the usbmodule loads - the system messed up, the sound did not work, too. but agpgart and fglrx worked :-)).
thanks a lot.
p.s.: ~300 fps in q3@1024x768 is realy fast ;-))
athlon xp 2600+
2x512 mb ram
ati radeon 9500 np 128 mb
ibm 120 gb harddisk
debian linux (unstable version)