Does it work if you run 'modprobe nvidia' after a reboot ?
If it does work you may need to add
Code:
alias char-major-195 nvidia
to your modules config file.
on a 2.4 kernel this is usually /etc/modules.conf
on a 2.6 kernel its /etc/modprobe.conf
the name and location of this file is often distro specific.
Mad.