I don't know RH 8 & it's setup-routines, but the
card is definitely supported in XFree, both 3.3.x
and 4.x ...
I reboot after installation and the video is not recognized, I get the ol' 104 error.
since you get a 104-error message I assume that
it does give you a console ... from there, rather than
using RH tools, try running
If it works, try running that setup (it tells you how
on stdout) ... if it doesn't, post the errors.