fusion-icon crashed with KeyError in init()

[Setkai]

Binary package hint: fusion-icon

I update ubuntu 10.04 beta to beta2 restart and i get the error beginnig the session

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: fusion-icon 0.1.0-2
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
NonfreeKernelModules: wl
Architecture: i386
CheckboxSubmission: b45083bc66bd015fb75e9fb278d089f7
CheckboxSystem: b845c366ea09c60efa3a45c1b5b21525
Date: Sat Apr 10 00:03:40 2010
ExecutablePath: /usr/bin/fusion-icon
InterpreterPath: /usr/bin/python2.6
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/fusion-icon
ProcEnviron:
 LANG=es_MX.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/fusion-icon']
SourcePackage: fusion-icon
Title: fusion-icon crashed with KeyError in init()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare