Select menus in XP and MAC will overrun the window boundaries
and if near the edge of the viewport it will overrun the edge. As a
result long menus are unselectable past the viewport. This can be
tested by adding the following HTML to the default HelloWorld.html.
If you then pull down the menu it will overrun the borders... move
the window to the bottom of the screen and it scrolls off the
monitor. We have very long pulldown lists with hundreds of items
and they will not fit. I have been unable to find a CSS solution