I have two monitors as well and cannot drag the right edge of the windows on the left monitor to the right monitor at all. No matter how narrow, or where on the screen the window is, it will NOT move to the right monitor. The one on the right is actually higher resolution than the one on the left, so theoretically any height window should bridge, but nope, none do. And if I drag the window from one to the other and drop it partially moved, it drops whatever is on the TO monitor and shows only a slice on the FROM monitor.