NSScrollView/NSScroller drawing glitch on leopard

FROM : Ben Lachman
DATE : Sun Apr 27 22:58:33 2008

Hi all.

Recently I noticed that one of the scrollers in my app was drawing a 
bit oddly on launch.  What happens is that the vertical scroller draws 
as if both the horizontal and vertical scrollers were visible (e.g. a 
little empty white box below the down button). However, only the 
vertical scroller is visible (it's the scroller for a table view). 
Once I resize the window, etc. I have no problems with its drawing, 
just on initial launch.  It also doesn't seem to matter what size it 
is on launch as long as it is large enough to not have a horizontal 
scroller.  This only happens on Leopard. How can I get rid of this box?

Thanks,
->Ben