I know this has been posted before but the old solution no longer works. I play on my 42" plasma at 1920x1080 via hdmi and my frame rate in cysis is locked at 24 fps. I was creating a custom duplicate resolution in the nvidia control panel and everything was peachy keen. Now with the new drivers creating duplicate resolution profiles is blocked. I never figured out what I was fixing before so I don't know a proper work around now. Any ideas? These games (and witcher 2) are my flagship games that make me feel good on rainy days! alt-tabbing doesn't help. creating a custom res a pixel or two off or a refresh rate of 59hz doesn't do it either.

I had the same issue man, honestly easiest fix is to just break down and buy an actual monitor. Most likely what's stopping your frames is vertical sync because that was the exact issue with mine. Doesn't do it with an actual monitor though.