Tested on Sun's Gnome 2.0 Beta 2 Build 3 version on a [Xinerama]Solaris 9 .

1. In xinerama vertical setting (top and bottom):
Expected Result: The (vertical) edge panel should span across screens from 
top to bottom, with one end of the panel on the top screen and the other 
end on the bottom screen.

Actual Result: The edge panel spans across the top screen alone. 

2. In xineram horizontal setting (right and left screens):
Expected Result: The right, vertical edge panel should be placed on the 
rightmost edge of the second screen. 

Actual Result: The edge panel is placed on the right edge of the first 
screen itself.