add_ui and add_ui_separator don't work!

[Diana Esch-Mosher <desch-mosher lanl gov>]

Ok, I've tried just about everything to verify that add_ui and
add_ui_separator are working. I must be doing something really wrong
(stupid) or they just don't work! I provided an example in my earlier
post "adding ui elements". I've played around with the examplewindow.cc
and have gotten the add_ui_from_string(), add_ui_from_file(), and
remove_ui(), new_merge_id(), get_ui() and ensure_update() to work with
as advertised. I'm stuck in my port from the standard menubar/toolbar to
uimanager until someone can give me a clue! I'm trying to implement a
file history on my file menu, thus requiring the add_ui and
add_ui_separator capabilities. (gtkmm 2.4.5, gtk 2.4.10)

Thanks.
-- 
Diana Esch-Mosher <desch-mosher lanl gov>
Los Alamos National Laboratory