I upgraded to Desktop 12 and also have probems with being able to drag my application windows that are on the top edge of the screen while in full screen mode. When I try to drag the application window, it drags the whole screen instead!. Driving me crazy as I cant move my aplications or even resize them. Please get us a fix asap. I wish I never upgraded to 12 as i have had nothing but trouble with full screen mode since i upgraded.