See this post http://ubuntuforums.org/showpost.php?p=9248487&postcount=15 and change the launcher command to "gksu software-center"
-- Unable to install from "Software Center" https://bugs.launchpad.net/bugs/520349 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
