You can try to fix the refresh rate problem two ways. If it's flickering in windows and you have set it to 85Hz but it still flickers, go to the "Displays" tab and where it says "monitor" click on it and set the max refresh rate at 85. In games like cs you can you use a program called refresh lock or refresh fix to fix the problem. I use refresh lock and lock the rate at 85Hz @ 1024 rez.