Xubuntu: I've lost the menu!!

Don't panic!

It seems to be common to lose the right-button menu when you open the menu editor (I had a 'Segment violation' error). To recover it, open a terminal, and type:

cp /etc/xdg/xfce4/desktop/menu.xml ~/.config/xfce4/desktop/menu.xml

That's all. If you have problems because the directory doesn't exist, create it first:

mkdir ~/.config/xfce4/desktop