Not exactly a software center bug. I can reproduce this bug when I start rhythmbox for the first time then click on music store it says no codecs installed I click install button and the dialoug box is unfocused. Hence a policykit bug IMO.
-- Authentication dialog starts unfocused https://bugs.launchpad.net/bugs/537916 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs