I suggest you reinstall from the beginning, this time do not use the test button. The reason this can cause problems is that some hardware does not respond politely to 'probing' that is done by some of the tests. You may have better success using an newer version of RedHat also, as bugs like that are frequently removed and added to the upstream projects (like XFree86 which is separate from redhat but used by redhat). See the Fedora Core link in my sig for the newest 'RedHat Linux' which is now known as Fedora.
The main issue you want to avoid, is probing your hardware with tests. You know what it is, just select what you know it is from the lists and you should be better off. On the video card, the exact choice you make is trivial, select any GeForce 2 or higher generic card from the list (the same driver will be used, the name will just be different in the config file).
"..the triumph of evil is for good men to do nothing."
VIDIA video driver RPMs for Fedora
:: see yum repo at livna.org