After reading my response, I can see how stupid it sounded. Allow me to explain... There is a bug where the menus sometimes dont display correctly after a resolution change, irregardless if you were in window mode or full screen. The workaround was to resize while in window mode (even by 1 pixel) and the menus would magically redraw to the correct dimensions of the new resolution setting. Put the game into window mode (ALT-W) and resize. It should work fine thereafter.