battery.py crashed with DBusException in call_blocking()

Occurs after a reboot

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: awn-applets-python-core 0.4.0+bzr1372-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.35-19.28-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic i686
Architecture: i386
Date: Fri Sep 3 23:31:36 2010
ExecutablePath: /usr/share/avant-window-navigator/applets/battery/battery.py
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100224.1)
InterpreterPath: /usr/bin/python2.6
PackageArchitecture: all
ProcCmdline: python /usr/share/avant-window-navigator/applets/battery/battery.py --uid=1276442252 --window=25165876 --panel-id=1
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
 LC_PAPER=en_GB.UTF-8
PythonArgs: ['/usr/share/avant-window-navigator/applets/battery/battery.py', '--uid=1276442252', '--window=25165876', '--panel-id=1']
SourcePackage: awn-extras-applets
Title: battery.py crashed with DBusException in call_blocking()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare