How to determine refresh rates

[glp1del]

Lately I have been getting eye strain after playing sacrafice for a few hours to the point where I can't look at the computer screen to do email and the such after playing. I think its due to the refresh rate being a little low. Here are the specs I was able to find on my proview monitor, which is about three years old.

SA-765

17" flat square (15.7" viewable)
.28mm Dot pitch
Refresh Rate: 56Hz ~ 85Hz
Maximum resolution 1280X1024, Non-interlaced
UL, CUL, FCC-B, DHHS, TUV/GS, CE, MPRII (optional)
Digital with On-screen display
Plug and Play compatible
Power consumption 130W (Max), AC 100 to 240V
Detachable speaker kits (Model AR-200M)(optional)
Weight 44.22lb/37.62lb (Gross/Net)


I normally run it at 800X600 and was wondering if there was a way to determine the refresh rate or is that something that can be determined only by the specs, which I am still searching for on the web that tell the refresh rate at each resolution level.

TIA Glp1

 

[polar]

you can set the the refresh rate in the display properties -> settings -> advance -> adapter

set it to optimal, and windows will automatically set your refresh rate to the best your monitor and video card can handle.

 

[Biggs]

Which is better, using optimal or manually setting the highest value windows can detect for your monitor?

 

[sparrow18]

Why my display prop->setting-> advance doesn't have the refresh rate adjustment thing ?
MSI TNT2 M64 PRO driver