software-properties-gtk crashed with UnicodeDecodeError in init_distro(): 'ascii' codec can't decode byte 0xec in position 3: ordinal not in range(128)

[Gumuiyul]

version : 11.10 daily build in 3th,August
I updated Korean Language Pack with automatic alert by Update Manager
and I installed Compiz Configuration Setting Manager(ccsm) and enable my compiz setting
and reboot. Just only that.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: software-properties-gtk 0.81.4
ProcVersionSignature: Ubuntu 3.0.0-7.9-generic 3.0.0
Uname: Linux 3.0.0-7-generic i686
Architecture: i386
Date: Thu Aug 4 21:06:07 2011
ExecutablePath: /usr/bin/software-properties-gtk
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110803.1)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-properties-gtk --open-tab 2
ProcEnviron:
 PATH=(custom, no user)
 LANG=ko_KR.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/software-properties-gtk', '--open-tab', '2']
SourcePackage: software-properties
Title: software-properties-gtk crashed with UnicodeDecodeError in init_distro(): 'ascii' codec can't decode byte 0xec in position 3: ordinal not in range(128)
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[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 #815642, 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.