Anyone have this problem: When moving a tool bar, menu or the main work window, the drop shadows at the edge of these windows will stay in place for a while.  It's not so much a problem in itself, but I also had problems when moving these tool/menu bars to my second monitor....Poser would crash.

I've updated to the latest driver for my video card and think I've eliminated the crashing, but I'm still getting those stuck drop shadows.
I'm running on Windows Vista 64-bit and am using UltraMon for managing my dual-monitor setup.

Edit: Oh and this is happening with both Poser 7 and Poser Pro.  I've tried reinstalling both of them and am using the latest updates.