if you download 3Danalyzer from www.tommti-systems.de you can try Voodoo flicker fix to avoid this.. I used it to solve a flicker problem with BloodRayne on my voodoo5.

-Nigel

- Chipset Via KT133A

QDI Kinetiz 7E/A


- Chipset Via KT333

QDI Kudoz 7E/333



-Nigel

there's no way at this moment to play Devastation, Splinter Cell, Raven Shield, and many other games using new ut2003 3d engine (which can run on voodoos) but with a block making our cards not work :|
I have still not tried to run BHD.
Vietcong runs quite well, except for some corruption in the rendering.

UPDATE: here screenshots taken from Vietcong, with little corruption where cubemaps should help with the render.. http://213.92.76.242/3dfxzone/forumzone/topic.asp?TOPIC_ID=7485&FORUM_ID=63&CAT_ID=15&Topic_Title=Vietcong+e+Voodoo+5&Forum_Title=Screenshots+e+qualit%E0+visiva+delle+schede+video

-Nigel

2000's card, PCI with a single CPU and a fan on it sounds like a Voodoo4 PCI.
If it has a DVI port in addiction to standards VGA one, it is a Mac version, so it should have a mac-compatible bios on it. In order to have it run smoothly you can download drivers here http://www.voodoofiles.com/3510

-Nigel

I have a VoodooMac 5500 PCI on an Epox kt333 8k5a3+ board and all is ok, playing very smooth