NV4x (6 series) dropped support for 8-bit palettized textures which may prevent some games from running, no driver can fix that. It does still retain fog table support though. Another thing to be aware of if it's an AGP card is that earlier 6 series cards were native AGP but newer ones used a PCIe-AGP bridge chip which may cause performance or compatibility issues with some chipsets.

The table fog support is via driver emulation, as I believe it was already with the GFFX 5900.

Thanks, I couldn't remember the name of what was missing.

Is there a certain era of games that need 8bit palletised support? From what I remember it's possibly FF7 and 8 at the very least.

Wasn't uncommon back when D3D titles were still being designed for 3dfx Voodoo cards. When the TNT showed up, it lacked support. The games or cards do do something to get around it, because other than FF7, FF8 and maybe European Air War, you don't see games flatly refusing to run.

Seen Thief II and System Shock 2 mentioned as two games that look worse without 8-bit palettized textures, probably also includes Thief Gold then and possibly the original Thief: The Dark Project. Could just be part of the crappier dithering by newer cards, instead.

Thanks for the info. I have a TI4200 which has been more or less perfect for what I need it for anyway. Might still chuck the 6800 in there, since I have a Voodoo3 as backup. I'd be curious if Half Life is affected.

STick with the Ti4200, great card in its time

Yes. GF4-ti4200 is a great card. Anything between TNT2 and GF4 are what to look for when it comes to Win98.
Voodoo2-SLI, Voodoo3-3000/3500, Matrox-G400/G400-Max are great as well.

Will do folks, thank you. I had a Ti4200 back in the day and it always served me well, I remember I think it was Battlefield 2 that finally wouldn't run on it at all!