Minor Description
If the window / display size is small (either height [usually] or width), a tall or wide MenuPopup will be positioned either off the top or off the left of the window and you cannot see the top/left of the menu. This is particularly a problem with the height because you cannot see the menu items that are positioned outside the window, and so you cannot properly select them.
The solution is to limit the border size in these cases, so that the Panorama that surrounds the menu list will automatically come into play and allow the menu to be scrolled into view.
