Coert:
See: http://www.nvnews.net/vbulletin/forumdisplay.php?f=14
I believe the 1.0.6629 version of the driver doesn't work with the TNT2 cards, see also
https://www.redhat.com/archives/fedora-list/2004-November/msg03914.html
My solution was to insert a newer card into the computer ;-)
Best regards, Erwin