Quote Originally Posted by PopeAK49 View Post
In you halo video settings, is Vsync off? You can mess with most of your video settings in halo instead of screwing around with the video card settings.
If he has the resolution set to 1680 x 1050 (which i do to) if you click apply after changing graphical settings in halo, the resolution will be switched to the the resolution thats in the bar at the time you apply