Tribes 2 + GF3= Trippy

So I got a Gainward gf3 ti200 on a win98se box… I just got Tribes2 the other day, and it seems that every time I enter a building, all fo the textures go psychedelic (sp?)… Neway… Whenever I have any kind of view to the outside (door etc…) the textures are fine, but if I turn around and face inside everything goes trippy and stays so until I exit the building… It is really really annoying… Now I am ocing the video card significantly, but I doubt it is heat issues since I can run Looping demos of Maxpayne, q3, and UT for HOURS without any visual artifacts or lockups… Any help would be much appreciated…
P.S. I did search the forums for similair questions, but it seems nobody has been having this problem…
P.S.S. I also have tried following sierra’s directions with the ‘Firstaid’ utility… this did nothing.