Hi, I''ve just about finished a major project but there''s still a problem that relates to DisplayFrequency. On XP systems, after either resizing my OpenGL screen by using the API ChangeDisplaySettings or after closing my application; some systems end up with a Refresh Rate of only 60Hz. I know that this problem is as a result of a Microsoft oversight with regard to the way in which XP processes optimal settings and I really don''t want the user to have to select a refresh rate, so is there an approach that can overcome this problem ? Many thanks Andrew

I would guess store the frequency in a variable before changing resolutions, and then when quitting set it back?

Google for "RefreshLock", a free tool that allows you to set the refresh rate for every resolution separately