Re: Game start change my monitor res to 67.4 KHz
How should the game be able to change your Monitors refresh rate to 67Hz if it's max rr is @60Hz.
Did you tried to run the game in windowed mode instead of fullscreen?
also if you have a Nvidia graphics card you could try setting vsync via control panel because the loading screen will run at 2000fps or so, maybe this couses some trouble.