Quoting Jacek Generowcz <
jacek.generowicz@cern.ch>:
XMonad then runs beautifully, except for one serious problem: no application menus appear at all, neither in the application windows, nor on the panel (appmenu).
It might bem or it might be it's posting the menus as some unknown kind of special window (e.g. kde4 menus don't show up properly if you don't use the stuff in ManageHelpers which recognizes their special window types).
NB: I am not particularly interested in debugging Unity; I fled Ubuntu to get away from it.