Same problem for me. I have a laptop and desktop both running Ubuntu 11.10 x86_64. The laptop is fine but the PC has this bug.
Just right-click on the update-manager icon and close the application. Then choose 'software up to date' in the main menu to relaunch. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/925260 Title: Update Manager does not open, but the icon appears on the dash when updates are available To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/925260/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs