Update manager sometimes cannot be maximized

[Jussi Lind]

I don't know exactly how to reproduce this, but it has happened several times now. When I leave Update manager minimized to the launcher for some time (I never switch off my computer), I cannot maximize it again. Clicking on the launcher icon does nothing. However, I can still perform actions via the menu behind a right-click, e.g. "Check for Updates". This doesn't happen to any other application.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.10
ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
Uname: Linux 3.2.0-32-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu14
Architecture: i386
Date: Sat Oct 13 11:50:42 2012
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1350104128
 com.ubuntu.update-manager show-details true
 com.ubuntu.update-manager window-height 621
 com.ubuntu.update-manager window-width 600
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to precise on 2012-02-26 (229 days ago)

[Sami Jaktholm (sjakthol)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 989588, so it 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. Feel free to continue to report any other bugs you may find.