I've just had this error, the workaround on the description worked (killall) I'll attach my logs too...
** Attachment added: "software -center log file" https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/772549/+attachment/2196410/+files/software-center.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/772549 Title: software-center blank screen on fresh natty 11.04 install To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/772549/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs