be sure to edit /etc/X11/XF86config (should have said that earlier...) with what text editor you like, change the driver from nv to nvidia and make sure the config loads the correct stuff
Code:
Section "Module"
Load "dbe"
Load "extmod"
Load "fbdevhw"
Load "glx"
Load "record"
Load "freetype"
Load "type1"
EndSection
you do not wanit it to load GLcore or DRI in this section.
that should be it, then type
init 5 and you should be set.