What distro are you trying to install? If redhat or most others with a grpahical install, then you can install using the text based install by issueing text when it first comes to:
That should start the text install instead of a graphical install. But be weary, if it won't load the graphical install automatically, theres a good chance you won't have any type of GUI after installing and only command line.
You might want to check out http://www.xfree86.org
for compatibility with your video card, if you might need an update or new drivers for it.