Comment 2 for bug 748118

StacktraceTop:
 accessible_desc_update (io=0x84ca0c8, entry=0x854eb18, menuitem=0x8486d68) at applet-main.c:271
 g_cclosure_marshal_VOID__POINTER (closure=0x8505550, return_value=0x0, n_param_values=2, param_values=0x8468b18, invocation_hint=0xbf8d4dc0, marshal_data=0x0) at /build/buildd/glib2.0-2.28.4/./gobject/gmarshal.c:603
 g_closure_invoke (closure=0x8505550, return_value=0x0, n_param_values=2, param_values=0x8468b18, invocation_hint=0xbf8d4dc0) at /build/buildd/glib2.0-2.28.4/./gobject/gclosure.c:767
 signal_emit_unlocked_R (node=0x84b0960, detail=0, instance=0x84ca0c8, emission_return=0x0, instance_and_params=0x8468b18) at /build/buildd/glib2.0-2.28.4/./gobject/gsignal.c:3252
 g_signal_emit_valist (instance=0x84ca0c8, signal_id=225, detail=0, var_args=0xbf8d4f80 "\001") at /build/buildd/glib2.0-2.28.4/./gobject/gsignal.c:2983