I think this bugtracker at RedHat is the same problem: https://bugzilla.redhat.com/show_bug.cgi?id=1054212. They appear to have found a fix, but I can't access the network-manager-applet download to verify.
** Bug watch added: Red Hat Bugzilla #1054212 https://bugzilla.redhat.com/show_bug.cgi?id=1054212 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/913839 Title: tether over bluetooth - regression in precise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/913839/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
