run apprunner with paint flashing on. scroll to the bottom of the sidebar then scroll back to the top using the thumb (not clicking the scroll arrows). as you scroll back up, the left half of the toolbars will be invalidated and you can see it flash, repainting unnecessarily.
Reassigning all view bugs to kevin.
Not seeing repainting of toolbars in 3/16/2000 build. Marking as Fixed
With the May 22 build, I'm seiing this problem either. Marking verified fixed.