Fire up X. Let the default fvwm95 window manager come up. Using the menu, switch to WindowMaker style of window manager. Once complete use the menu again to switch back to fvwm95 style window manager. => oh dear! we left a WindowMaker clock applet lying around. This should have been killed off in the switch back to fvwm95 window manager.
Sure enough, the clock hangs out on the desktop after the change. Preston, don't kow whether you wanted this, but yours was the first name on the list!
we aren't fixing this. It is trivial, and because fvwm(whatever) is deprecated in 6.0, it isn't a priority.