Answer:
A refresh rate that's too low can cause a flicker that often results in eyestrain. A refresh rate of at least 60Hz is best; the higher the better. LCD monitors sometimes don't accommodate refresh rates above 60Hz, but because of the way an LCD screen works, it doesn't need as high a refresh rate as do CRT monitors. There is no option in Windows 3.1 to change the refresh rate, but Windows 95/98/98SE/NT/2000/Me/XP users can right-click any blank area of the Desktop and select Properties to open the Display Properties dialog box. Select the Settings tab, click the Advanced button and select the Adapter tab. What you see next depends on your video card, monitor, and Windows version, but typically you'll see a drop-down box that lets you select different refresh rates or a List All Modes button that lets you access a refresh rate list. Select the desired refresh rate and click OK to close each open dialog box.
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