software-center crashed with UnicodeEncodeError in get_dbus_message(): 'ascii' codec can't encode character u'\xe4' in position 42: ordinal not in range(128)

[tehopaketti]

I tried to install http://download.lightscribe.com/ls/lightscribe-1.18.8.1-linux-2.6-intel.deb
I cannot install it.
please help me

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: software-center 4.1.22
ProcVersionSignature: Ubuntu 3.0.0-11.17-generic-pae 3.0.4
Uname: Linux 3.0.0-11-generic-pae i686
ApportVersion: 1.22.1-0ubuntu2
Architecture: i386
Date: Sun Sep 18 22:48:30 2011
ExecutablePath: /usr/share/software-center/software-center
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110804)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center /tmp/lightscribe-1.18.8.1-linux-2.6-intel.deb
ProcEnviron:
 PATH=(custom, no user)
 LANG=fi_FI.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/software-center', '/tmp/lightscribe-1.18.8.1-linux-2.6-intel.deb']
SourcePackage: software-center
Title: software-center crashed with UnicodeEncodeError in get_dbus_message(): 'ascii' codec can't encode character u'\xe4' in position 42: ordinal not in range(128)
UpgradeStatus: Upgraded to oneiric on 2011-08-31 (17 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[tehopaketti (tehopaketti)]

I need Lacie lightscribe labeller daily.

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #846044, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.