Thanks for your bugreport. The logs show a warning but no real error, does software-center fail to start? Or is there something wrong with the window?
** Changed in: software-center (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to software-center in Ubuntu. https://bugs.launchpad.net/bugs/978598 Title: errors from terminal Status in “software-center” package in Ubuntu: Incomplete Bug description: on gnome software-center (software-center:6914): Gtk-WARNING **: Theme parsing error: gtk.css:1:58: Failed to import: Die Ressource auf »/org/gnome/adwaita/gtk-main.css« existiert nicht 2012-04-11 08:03:44,555 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None' 2012-04-11 08:03:44,562 - softwarecenter.db.database - INFO - open() database: path=None use_axi=True use_agent=True 2012-04-11 08:03:45,065 - softwarecenter.backend.reviews - WARNING - Could not get usefulness from server, no username in config file ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: software-center 5.1.14.1 ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14 Uname: Linux 3.2.0-22-generic x86_64 ApportVersion: 2.0.1-0ubuntu1 Architecture: amd64 Date: Wed Apr 11 08:04:38 2012 InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328) PackageArchitecture: all SourcePackage: software-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/978598/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp