title: Service broker queues are disabling themselves, can't unearth the reason
body: <p>In sys.transmission_queue the only information I'm given is "One or more messages could not be delivered to the local service targeted by this dialog."</p>
  
  <p>If I re-enable one of the problem queues (there are five) and leave Activation set to OFF, the queue fills up with its messages.  If I then run the Activation SP, I process the messages correctly and without issue.  But as soon as I turn activation ON, if there are ANY messages in the queue, the queues will disable themselves again.</p>
  
  <p>I'm completely lost.  Does anyone know how I can troubleshoot this?</p>