Zeis Tempura

I've tried reinstalling the drivers several times now, and it still doesn't work.

I just got a new video card today, but SL says that it is unsupported or that the drivers aren't up-to-date. I'm pretty sure that the drivers are fine, so am I just stuck with a new card that won't run SL? It's an ATI Radeon 4600 HD. Please help!