update-manager crashed with RuntimeError in __main__: could not open display

[ljs]

Binary package hint: update-manager

I am working with 11.04, update-manager had crashed more than once!

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.147
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
Date: Tue Apr 5 10:04:37 2011
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110305)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python2.7 /usr/bin/update-manager
ProcEnviron:
 SHELL=/bin/bash
 LC_MESSAGES=en_GB.UTF-8
 LANG=en_US.UTF-8
 LANGUAGE=en
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with RuntimeError in __main__: could not open display
Traceback:
 Traceback (most recent call last):
   File "/usr/bin/update-manager", line 41, in <module>
     gtk.init_check()
 RuntimeError: could not open display
UpgradeStatus: Upgraded to natty on 2011-03-26 (9 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[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 #350988, 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.