I messed up Xfree86

[Joel Dinel <kint@videotron.ca>]

A simple apt-get upgrade today left me with Xfree86 4.0.1 and this little problem :

kint@dimmu:~$ sudo XF86Setup
Warning SERVER specification missing in Card database entry Trident TGUI9420 (generic) (line 2178).
Warning SERVER specification missing in Card database entry Trident TGUI9440 (generic) (line 2183).
Warning SERVER specification missing in Card database entry Trident TGUI9660 (generic) (line 2188).
Warning SERVER specification missing in Card database entry Trident TGUI9680 (generic) (line 2193).
Warning SERVER specification missing in Card database entry Trident Cyber 9320 (generic) (line 2210).
Warning SERVER specification missing in Card database entry Trident Cyber 939a (generic) (line 2233).
Warning SERVER specification missing in Card database entry Trident Cyber 9520 (generic) (line 2244).
Warning SERVER specification missing in Card database entry Trident Providia 9682 (generic) (line 2267).
Warning SERVER specification missing in Card database entry Trident Providia 9685 (generic) (line 2272).
Warning SERVER specification missing in Card database entry SiS 530 (line 2285).Warning SERVER specification missing in Card database entry SiS 620 (line 2289).The VGA16 server is required to run this program
Press [Enter] to continue...

Then I am put back at the command prompt. How can I go back to 3.3.6, or what am I missing to make 4.0.1 work ?! I'm running Woody, and I have a Voodoo III that I don't use for games under Linux.

Thanks ! 
-- 

Joel Dinel
kint@videotron.ca