Don't bother with the disk. The utility is right on your drive. You can use "xf86config", "xf86cfg", or "xfdrake". I'd suggest the first one. Follow the steps and you'll have a new config written that should work. I've never owned an NVidea card that was compatible with my motherboard, so I will be of limited assistance to you (although I've installed and configured X, X# of times. LOL). From every thread here that I've been involved in, people have suggested that you start with the "nv" driver for the vid card. That'll get you started with 2-d support. Once your x-server runs, you can download the driver from NVidea that matches your card and install it (you'll have better performance than with Windows drivers, I hear). That will take care of your card.
The other most important part of the configuration that will be a show-stopper, if not done correctly is the section where resolution is set. Be sure to include modes that your monitor can handle. Usually, if you choose a color depth of 16 or 24 bits, you'll want to set the resolution to the ideal for your monitor. If you have a 17" for example (less than 10 years old
), you should try "1024x768" and perhaps "800x600". If the configurator selects resolutions higher than that, eliminate them before going to the next step (be sure to say "no" about having a virtual desktop, if you don't want that "spreadsheet" effect). Let it write the file and try it with "startx".
The file that controls X configuration in Mandrake is located at /etc/X11/XF86Config-4. If you want to "tweak" it, you can always edit it manually with a text editor as root.