I've found the dual screen far superior to OS X. The Start menu appears on the screen (right or left) based on which Windows button you pressed (left or right

I've found the dual screen far superior to OS X. The Start menu appears on the screen (right or left) based on which Windows button you pressed (left or right side of space bar). You can also open the charms menu on either screen, although it is more difficult to position the mouse pointer at the bottom of the left screen.