avec la console :
code: GLib-GObject-WARNING **: instance of invalid non-instantiatable type `(null)’
(evolution-2.6:14380): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion `G_TYPE_CHECK_INSTANCE (instance)’ failed
(evolution-2.6:14380): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `(null)’
(evolution-2.6:14380): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion `G_TYPE_CHECK_INSTANCE (instance)’ failed
(evolution-2.6:14380): GLib-GObject-WARNING **: invalid uninstantiatable type (null)' in cast toESourceGroup’
(evolution-2.6:14380): e-data-server-CRITICAL **: e_source_group_peek_base_uri: assertion `E_IS_SOURCE_GROUP (group)’ failed
[/code]
GLib reviens souvent 
Je vais récupérer mais message avec une autre machine, ça devrait aller, et sylpheed me convient mieux.