The menu disappears even if you don't start wxMaxima under Unity. I installed wxMaxima after switching back to the default gnome desktop and it didn't have a menu to start with. Funny thing is that if i install indicator-applet-appmenu and add it to the gnome panel, it shows the wxMaxima menu (however, it doesn't show the Lyx menu, so using it is not a solution).
The menu disappears even if you don't start wxMaxima under Unity. I installed wxMaxima after switching back to the default gnome desktop and it didn't have a menu to start with. Funny thing is that if i install indicator- applet- appmenu and add it to the gnome panel, it shows the wxMaxima menu (however, it doesn't show the Lyx menu, so using it is not a solution).