Hi there!
I got a Geforce 4 Ti 4200 graphics card with the newest nVidia drivers (77.77), and I can't override the refresh rates for OpenGL anymore. So OpenGL games run at only 60 Hz, what is quite annoying. How can I unlock this setting and solve this problem?
Thanks in advance, Christian

Erm, please be more specific?

Are you unable to access the "Refreshrate overrides" menu item in your graphics card drivers tab, or did you set the correct refreshrates but it just ignores them?

If you mean situation #1 you need to install the ForceWare Coolbits which are just a registry hack (see attachment)

Situation #2 is solved by enabling the Nvidia Driver Helper Service again (which is often recommended to be shut down by various "boost your performance" tweaking sites and guides - yeah nice performance but 60 Hz sucks balls )

It was situation #1. Coolbits installed and it works. I don't understand why nVidia hides this setting...

Great, thank you