I have tried to install a deluxe Redhat 6.1 on my old PC which haves
a Tseng Labs ET4000/W32 PCI video card. During installation i got
the following screen dump:

...
...
running intall...
running /sbin/loader
Probing for mouse type...
Tracebck (innermost last):
File "/usr/bin/anaconda", line 133, in ?
         result = xsever.startX ()
File "/usr/lib/python1.5/site-packages/xserver.py", line 44, in startX
         x.probe ()
File "/usr/lib/python1.5/site-packages/xf86config.py", line 170, in probe
        self.vidCards.append (self.cards (server[5:]))
File "/usr/lib/python1.5/site-packages/xf86config.py", line 118, in cards
        card = cards[thecard]
KeyError: ET4000 W32i
install exited abormally
...
...

Changing to installation using "text" mode produced the same error
for the innermost calls and "expert" mode produced the precisly the
same error.