and how do i change that rate??
Right click on your desktop -> Properties -> Settings -> Advanced -> Monitor -> Refresh rate
Set it to 85Hertz if you have a monitor that is capable of doing so.
Do not uncheck the checkbox otherwise you'll blow up your monitor if you choose a refresh rate that is not supported.
if you have an LCD screen you should only use the native refresh rate (And resolution). Most likely 60Hertz.
Problems & Suggestions:
Problem AGP is disabled. This may cause performance penalty.
and this
If you have no AGP card, it is logical that it has been disabled. But perhaps your motherboard does not support certain features that show up as "disabled" in that program..
Is it a laptop or do you have a PCI video card?