Refresh means renewing to actual momentary stand. It can be the framerates of your monitor or just a window that has new files in it or your button settings.
What do you wanna do?

Oh yea: you can not turn off Screen refresh because that's what actually represents the motion on it.

__________________
01001011011000010110110101101001011100110110111101 11001001101001010110000010000001010010010101010100 110001011010