It's been stuck in the updates for some weeks now on Precise and Thunderbird 11. This from synaptic:
Depends: libawl-php (>=0.51-1~) but 0.49-1 is to be installed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/315732 Title: lighting doesn't play well with events in remote calendars from other clients To manage notifications about this bug go to: https://bugs.launchpad.net/sunbird/+bug/315732/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs