The monitor refresh rate is simply the speed at which the data on the screen is refreshed - altering this value will have no effect upon a games' FPS rate.
60Mhz is the lowest value that a monitor can work at - in the EU, health and saftey regulations have imposed upon manufacturers an obligation to manufacture monitors that have the capability to refresh at a minimum of 75mhz (800x600 res.)- considered to be the lowest healthy refresh rate. (As you and others have discovered, a lower refresh rate quickly causes headaches).
The 'Optimal' setting uses the highest rate that video card and monitor combination can support - so all things being equal, this is generally the best setting to use.
However, windows does not always recognise your monitor (if it does not recognise it, you will see the generic term of 'Windows plug and play monitor' in the display settings). If this is the case, you have two options:
1. Consult your monitor manual to select the correct refresh rate vis-a-vis the screen size resolution that you work with.
or
2. Preferable - Go to your the manufacturer's site (for your monitor) and download and install the relevant monitor driver - and then set the refresh rate to optimal.
*Bear in mind that setting a refresh rate to a level higher than your monitor supports will eventually burn out your monitor - so do follow this advice.*
[ 10-20-2003, 05:10 AM: Message edited by: Skunk ]
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