I run Windows XP and Red Hat on my PC. In Windows my refresh is listed as 72 Hertz, 75 Hertz, etc. In Red Hat my refresh rate is listed as a horizontal and vertical rate, in other words a different number for each. The Red Hat numbers do not come close to matching the Windows numbers. The problem I'm having is that I have to adjust the position of the picture using the controls on the monitor when I switch from Windows to Red Hat at vice versa. I'd like to set the refresh rates to be the same between Windows and Red Hat, but don't understand how.