> I installed xfce from a .deb, so I guess the person who made the .deb > used a different location. I wonder what is the purpose of > gtk-xfce-engine-2, since the app runs OK? It is a GTK engine used to render your GTK2 applications. You may change to another and/or try different themes via the user interface MCS plugin (e.g. Setup/User interface). Bye, Moritz