?? () from /usr/lib/control-center-1/panels/libbackground.so
g_cclosure_marshal_VOID__OBJECTv () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0