Having recently installed Ubuntu on my iBook G4 (yup, power PC style), I click on all available buttons to see what happens (as Ubuntu is full of nice buttons, really).
Strangely, when clicking the mail button on menu bar, nothing happens. After having found it in fact starts Empathy, I launched it from terminal, and got the following :
GLib-GIO-ERROR **: Settings schema 'org.gnome.Empathy' is not installed aborting... aborted
What can I do to fix that and make Empathy work correctly ?