I recently added ObjectDock Plus to my purchases from StarDock/WinCustomize.
I didn't notice this behaviour while using the free version but, after going to ObjDock Plus, I'd come out of some app which'd been in fullscreen mode.. usually Mozilla-SeaMonkey or OpenOfficeOrg to find that ObjectDock had closed without any error, notification or other hint that something was goin' on.
I've been using the version which was current on 1-June-07. Now, I've just abandoned it for now because I got tired of restarting it.
Also, its a bit of a memory hog. I tried just using a basic tabbed dock without the special effects and it still chowed down on the available RAM.
I sure hope both of these concerns are being addressed.. or been noted for later. I'll just hang tight and try the next update when its out. Have to go back and reclaim some of the shortcuts and my floating toolbar since I'd dispensed with 'em in favour of ODockPlus.
-Git'er Dun.!