Refresh rate

I have a 19 inch Dell Ultra Sharp 1907FP monitor. My graphics card is an ATI
Radeon X1300 Pro with 256 MB. The native resolution is set to 1280 X 1024,
which is the proper display setting.

I am not having any problems. However, I have read many postings in this
forum that suggest increasing the refresh rate for better video playback. My
current default refresh rate is 60 Hertz. The two refresh rate options are 70
Hertz and 75 Hertz.

Is there any reason to change the default refresh rate as I am having no
problems? Thank you in advance for any suggestions.

Have a nice day.

C.B.