Download the linux driver from nvidia.com. Boot up in "Text Mode" and NOT in your Window Manager (i.e. KDE, Gnome, etc..) and then run the driver install as root. It will do it's magic in a walk through process. (Just keep hitting "ok" or "next") THEN, change your directory to your /etc/X11 and open up xf86config-4 file inside an editor (the command would be like: pico xf86config-4) and go to where it says "Driver "nv" " and change the "nv" part to "nvidia". then just save the config file and start up your window manager by typing startx. This is kinda the best tutorial I can write right now seeing as how I am at work and not on my linux box.