Setting TNT2 video board frequency

Hello there,

I have a PC with an ‘nVidia TNT2 m64’-based video card and, currently, I get a 60 Hz vertical refresh rate (as shown by my Philips 107S monitor’s control panel).

I would like to set it to something like 75 Hz and I seem not to be able to do this on Windows 98 using the latest nVidia drivers (release 4.12.01.0650). I have already checked and did not find the usual “Adapter frequency” (I think!) drop-down box.

In high resolution (higher than 1024×768)this refresh rate causes “real pain in the eye”. Thank for any good pointer as to solve this mistery.