OK, I have now installed the official-release version of 13.04 on a clean partition (again), and my problem has gone away. There might have been a hardware issue going on, as I have had to replace my processor fan and was getting errors in dmesg also to do with bus access.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1170166 Title: No right or left mouse menu in 13.04 GNOME or Unity To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/meta-gnome3/+bug/1170166/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs