Refresh Rate Issues

Hola~ Been playing GSB for a while, and fairly certain I encountered this problem (and solved it) before, but the solution is eluding me this time, it seems. What I am trying to do is lock the game’s refresh rate to a value that doesn’t send my monitor out of range, as it is currently doing at my present resolution.

I’m using 1280 x 960, with my monitor being rated at 75 Hz for this value, however, the game is deciding to select 85 regardless.
Here is the relevant section of my drawdebug file:

Description : NVIDIA GeForce GTS 450 DeviceName : \\.\DISPLAY1 Getting fullscreen refresh rate Found 37 adapter modes at 1280 x 960 Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[70] Found adapter modes at 1280 x 960 refresh[72] Found adapter modes at 1280 x 960 refresh[75] Found adapter modes at 1280 x 960 refresh[85] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[70] Found adapter modes at 1280 x 960 refresh[72] Found adapter modes at 1280 x 960 refresh[75] Found adapter modes at 1280 x 960 refresh[85] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[70] Found adapter modes at 1280 x 960 refresh[72] Found adapter modes at 1280 x 960 refresh[75] Found adapter modes at 1280 x 960 refresh[85] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[70] Found adapter modes at 1280 x 960 refresh[72] Found adapter modes at 1280 x 960 refresh[75] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[70] Found adapter modes at 1280 x 960 refresh[72] Found adapter modes at 1280 x 960 refresh[75] Found adapter modes at 1280 x 960 refresh[85] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[70] Found adapter modes at 1280 x 960 refresh[72] Found adapter modes at 1280 x 960 refresh[75] Found adapter modes at 1280 x 960 refresh[85] Found adapter modes at 1280 x 960 refresh[60] Found adapter modes at 1280 x 960 refresh[70] Found adapter modes at 1280 x 960 refresh[72] Found adapter modes at 1280 x 960 refresh[75] Found adapter modes at 1280 x 960 refresh[60] Using 85 as refresh rate

So, to reiterate, is there a means to set a refresh rate in Prefs.ini? I’m certain I’ve had this issue before, and been able to find a means of solving it without sacrificing resolution (it runs at 1024 x 768 at 85 Hz, but the effects on the screen as a result are unpleasant on my eyes at best) or running in Windowed mode, which for reasons that escape me, I abhor. Thanks in advance for your time~