I recently had to swap out video cards on one machine that I was running RH
7.0 on. I did a full install, but when I went to rerun Xconfigurator to
setup the video card, it detects the new card (an ATI Rage 128), but tells
me the Xserver for that card isn't found and it aborts. I did a locate
<xserverfilename> on my drive and came up with nothing. 

How do I install additional Xservers after I installed X?

Thanks,
J.