I have a GeForce 7100 and downloaded drivers 92.24
Before updating the drivers, when playing, I would have a FPS of 35-80. The steps to downloading the new drivers told me to disable Anti-Virus running in the backround and delete old drivers. I went into control pannel, then Add/Remove programs. It told me to find NVIDIA display drivers. Al I could frind was NVIDIA drivers, which sounded pretty much the same to me... so I removed it. I downloaded the new drivers and then opened counterstrike: source to play.
I have no clue why, but my fps is now only 10-25. It's very irritating and I would appreciate any help.