I had this problem on Ubuntu GNOME 14.04 LTS [AMD64 with Softare Center Version 13.10.
I followed Urs Fleisch suggestion to install the ubuntu-sso-login-qt package and it solved this problem for me too. It appears that software-center's dependencies should include that package. ** Also affects: software-center Importance: Undecided Status: New -- 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/713648 Title: Review window stuck at "signing in" Status in Ubuntu Software Center: New Status in software-center package in Ubuntu: Confirmed Bug description: Binary package hint: software-center Hello, We click on 'write your own review", the review window opens but stays in "signing" in state. I also updated the software-center to the latest daily build, and has the same problem. The internet connection works of course (else I couldn't write this :p) . OS details: Distributor ID: Ubuntu Description: Ubuntu natty (development branch) Release: 11.04 Codename: natty Desktop (informational): KDE 4.6 Software center version: 3.1.16~bzr1461~natty1 Screenshot: http://tinypic.com/r/1733wz/7 To manage notifications about this bug go to: https://bugs.launchpad.net/software-center/+bug/713648/+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