I am not an expert at configuring X-Windows but there is one program you might want to try running. It is the executable program that has the same name as the text file you are working with. If you are logged in as root you could type this:
But before doing that type this to see what the manual says:
I typed that and here what it said about using the -configure option:
"When this option is specified, the X server loads all video driver modules, probes for available hardware, and writes out
an initial XF86Config(5x) file based on what was detected. This option currently has some problems on some platforms, but in most cases it is a good way to bootstrap the configuration process. This option is only available when the server is run as root (i.e, with real-uid 0)."
I rarely have had video problems, so I am not sure if you should use that or not. Keep in mind that I am not an expert. I also use a nVidia card by the way under Red Hat 9. You might also see what the www.xfree86.org
web page says about your video card. If I am not mistaken, I belive that it lists information about various video cards.