Ahh, ok -- I've seen that error before. There's a way to fix it by editing the registry:
1. Click, Start, Run.
2. Type in regedit & hit Enter.
3. Go to [HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\OpenGLDrivers]. Delete the RIVATNT subkey.
4. Go to [HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\OpenGLDrivers] & make a New String Value entitled nvoglnt.