Help with Hobbit/Xymon (v4.2.2) setup

I'm new to Hobbit/Xymon and I've run into something that should be obvious, but I'm missing it. Any help appreciated.

I've setup Hobbit on the server and on a couple of clients. As far as I've gone, everything seems to be working *except* "bbd" on the clients come up as Red. In debugging it, I think that the Xymon server is getting a "Connection refused" from the clients when it tries to connect to the bbd port (1984) to run the bbd test. Although I see hobbitlaunch running on the clients, I don't see anything running on the client that would specifically listen to port 1984 -- is that done by the hobbitlaunch program?

How can I debug this to determine what the problem is?

David Masterson