update-manager crashed with DBusException in update()

[Extender]

Binary package hint: update-manager

I constantly see this error (almost one week, from ~15.09.2010) when updating system by Update Manager. After 1-2 seconds of downloading I see empty list and this error message. Synaptic is working well.

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: update-manager 1:0.142.14
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Sep 23 20:08:13 2010
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100406.1)
InterpreterPath: /usr/bin/python2.6
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.6 /usr/bin/update-manager
ProcEnviron:
 LANG=ru_RU.utf8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with DBusException in update()
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare tape vboxusers video

[Extender (msveshnikov)]

Maybe the cause of this error is my PPA list, will attach now

[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 #616721, 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.