run crashed with DBusException in call_blocking()

Binary package hint: checkbox

$ dpkg -l | grep checkbox
ii checkbox 0.7.1 Checkbox System Testing
ii checkbox-gtk 0.7.1 Checkbox GTK Interface
rc hwtest 0.7.1 Transitional package to checkbox
ii hwtest-gtk 0.7.1 Transitional package to checkbox-gtk

Still crashes.

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/share/checkbox/run
InterpreterPath: /usr/bin/python2.6
Package: checkbox 0.7.1
PackageArchitecture: all
ProcCmdline: python /usr/share/checkbox/run /usr/share/checkbox/configs/checkbox-gtk.ini
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=es_MX.UTF-8
PythonArgs: ['/usr/share/checkbox/run', '/usr/share/checkbox/configs/checkbox-gtk.ini']
SourcePackage: checkbox
Title: run crashed with DBusException in call_blocking()
Uname: Linux 2.6.28-11-generic i686
UserGroups: adm admin audio cdrom dialout dip fax floppy lpadmin plugdev scanner tape video