Try Option "RenderAccel" in your xorg.conf -- you also probably need to blacklist the agpgart module and enable NvAGP. If this works, please let me know, because I believe this is a configuration issue.
Try Option "RenderAccel" in your xorg.conf -- you also probably need to
blacklist the agpgart module and enable NvAGP. If this works, please let me
know, because I believe this is a configuration issue.