Description of problem:
Laptop. I'll take out battery and add it again. Power manager crashes on add.

Version-Release number of selected component (if applicable):
gnome-power-manager-2.26.4-3.fc11.x86_64

How reproducible:
100%

Steps to Reproduce:
1.see description of problem.
2.
3.
  
Actual results:


Expected results:
not to crash. 

Additional info:
stdout/err:
(gnome-power-manager:19956): GLib-GObject-WARNING **: gsignal.c:2270: signal `brightness-changed' is invalid for instance `0xa13680'

(gnome-power-manager:19956): Gdk-CRITICAL **: gdk_x11_atom_to_xatom_for_display: assertion `atom != GDK_NONE' failed

** (gnome-power-manager:19956): CRITICAL **: dkp_device_get_object: assertion `DKP_IS_DEVICE (device)' failed

(gnome-power-manager:19956): GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `GObject'

(gnome-power-manager:19956): GLib-GObject-CRITICAL **: g_object_get_data: assertion `G_IS_OBJECT (object)' failed