When I turn on compositing in Window Manager Tweaks, Libre Office menus show blank space instead of text. Screenshot (by someone else) available here: http://askubuntu.com/questions/133774/some-menu-items-of-libreoffice-only-show-a-dash-or-are-invisible I use xfce4.10 compiled from source, ubuntu 12.04 Kernel: Linux 3.2.0-30-generic-pae (i686)