volume-control.py crashed with IndexError in refresh_icon()

crashed

ProblemType: Crash
Architecture: i386
Date: Thu Mar 11 20:41:24 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/share/avant-window-navigator/applets/volume-control/volume-control.py
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100217)
InterpreterPath: /usr/bin/python2.6
Package: awn-applets-python-core 0.3.9~bzr1944-0ubuntu1
PackageArchitecture: all
ProcCmdline: python /usr/share/avant-window-navigator/applets/volume-control/volume-control.py --uid=1268218806 --window=29360177 --panel-id=1
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
PythonArgs: ['/usr/share/avant-window-navigator/applets/volume-control/volume-control.py', '--uid=1268218806', '--window=29360177', '--panel-id=1']
SourcePackage: awn-extras-applets
Title: volume-control.py crashed with IndexError in refresh_icon()
Uname: Linux 2.6.32-16-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare