On the "Time Zone Selection" screen, the grey text area under the map
always reflect the last time zone that you mouse-over on the map.
If you don't click on a time zone on the map to change the selection, 
shouldn't it change back to the currently selected time zone so it is 
less confusing? Users might assume that the one in the grey
text box is the selected one, especially if the one they
selected is not visibly highlighted in the scroll list.