Window refresh problems
This one is really iffy. I expect that this is a Runtime issue as much as anything, but I figure it's worth mentioning here. We're occasionally having quite significant window refresh problems running OHJ on Windows. The content pane will often not redraw correctly, and neither will the toolbar or menu when the content window is undocked. Usually, resizing the window will bring everything back to normal, but sometimes it takes a few tries.
Jeff