Get to a stable computer and load up that link. Print out the first 10 pages, and follow the instructions they give you.
Here is what you need to know to edit the XF86Config:
to access it, after you have installed the driver, type in the following command
# vi /etc/X11
Then select the XF86Config file that has a -4 next to it (I think that is the correct one, it is a little different on Red Hat 9)
Alright VERY IMPORTANT!
You must follow the directions from nvidia precisely! delete and edit ONLY what they tell you!
Some command that you will need to know to edit the thing,
Pushing "I" on your keyboard allows you to edit the file.
Pressing "Esc" takes you back into view mode.
in view mode pressing:
":qa!" abort vi without making changes.
":w" saves what you have done
":q" quits, use this after you have saved.
Hope that helps you! after that it really isnt that hard. Also check out the video card ram, if it doesnt say 128000 or something like that, go into insert mode "I" and put a "#" next to "Video memory" line and Xwindows will correct that for you automatically. Do that though only if it doesnt have 128 and a bunch of zeros or other numbers. (side story) I had a 2 meg card in my machine to install linux with, then i put the geforce in, and XF86Config said I still only had 2 meg memory, so I put a "#" (also referred to as a comment) and then X Windows fixed it for me.
Good luck and just so you know, I am no programmer myself, just a normal user, in fact programming scares me becuase I am bad at math, but I like computers and like learning about them. Believe me it is not as hard or as scary as it sounds, and after you do it, you'll say, gee was that all?