Open GL problems

I changed sound cards (Removed a SB Live 24-bit, and installed a SB Live Audigy 2 ZS) without any problems. Unfortunately, when I loaded up Team Fortress Classic on Steam I received the following message:

Fatal Error: Error initializing gl driver, check that the file ‘opengl32.dll’ exists

I updated to the latest video drivers for my GeForce 6800 but that did not solve the problem. Not sure how to fix this. Any help is appreciated…

That’s weird
Run some other game like Quake.
Try GLinfo
and post what it says on the first page.