You could try running update-menus
As for menudrake, if you run menudrake (can be done at cli) it is pretty
straight forward to edit it.
eric
> Why are app items in menus failing to launch apps? They launch okay
> from a terminal window.
>
> Should menus work the same in both KDE and Gnome?
All:
I installed Opera and a menu item appeared in the Networking > W W W
menu, which initially worked with the Gnome desktop. After some days
it the menu item caused a "launching" button to appear in the taskbar
(panel?) but this then vanished without the Opera browser appearing.
I included