I managed to solve my problem, I mailed epox and they delivered me the latest beta bios version. I installed it, in xfree config put Option "NvAGP" "4" (drivers chooses his own interface) in the Nvidia options and disabled dri and agpgart in the kernel and compiled again.
I emerge nvidia again and bingo the thing is working
Getting 3111 fps in glxgears now
What can I say, I am happy