I see. Anyway, my graphics card is not Intel - I'm using an ASUS 8800GT. But I've tried
I've looked through all the options in the nVidia control panel and tried creating a custom resolution for my screen - 1920x1080, 75 Hz. Unfortunately, I couldn't find an option to force MRO to use that resolution. When I opened the game, I found out that it was still running at 60 Hz.
Oddly enough, the game was running at sixty-something FPS now, but I don't think that the refresh rate change had any effect, as that was also the case from time to time with the old refresh rate. Anyway, I'll keep testing it and I'll let you know if it works!