Comment 9 for bug 683084

Mark: grab:

  deb http://ppa.launchpad.net/sladen/ayatana/ubuntu natty main
  appmenu-gtk=0.1.9-0ubuntu5~ppasladen1

Yes, if you resize (as well as move) a window up and down past the 600 pixel threshold then it the local menu appears/disappears. Note that won't already work for gnome-terminal /itself/ reliably and you may get white strangeness (I pulled my hair out for several hours before thinking to try something else, I suspect gnome-terminal is using that the configure-event signal for itself and there might be something up with the chaining). Again, beyond the scope of a quick test.

Best way to test, if you load gnome-terminal, and then run gedit from inside that and move/resize the top of the gedit window past the threshold.

It is not smooth (the event is only fired when the window drag is released), so if it's a solution we'll need to figure out what other events are available, or synthesis the necessary from the Window Manager (Compiz in this case so shouldn't be too much of a problem).