Comment # 2 on bug 906009 from Giacomo Comes

In reply to Walter Kiel from comment #1)
> The original version of the file
> 
> /etc/xdg/menus/ggz.menu
> 
> was "DTD Menu 0.8" (*all* other files had "DTD Menu 1.0"). 
> 
> I edited the header of this file (as root) to:
> 
> <!DOCTYPE Menu PUBLIC "-//freedesktop//DTD Menu 1.0//EN"
>  "http://www.freedesktop.org/standards/menu-spec/1.0/menu.dtd">

This fix does not work for me. After the change to the file and deleting the
cache, the menu is still broken. 
The same on a fresh installation: installed ggz-client-libs, edited
/etc/xdg/menus/ggz.menu then first login -> broken lxde menu.