Damn ! I should have thought about that. Well, there's no real development for TNT2 anymore in the drivers, and the unified character of nvidia's drivers make it so that new code for new cards may hamper the performance of older cards in the same drivers. I think I once saw a recommendation for the 21.xx drivers as being the best for TNT2. If you're happy about your performance now, maybe we can close this thread
Oh, what drivers do you use now ?