Couldn't create a new bus

Subject says all, I try to add a bus and Ardour crashes. It’s not a matter of tracks number, because it does even when there’s only one track in the session. I’m using the stable version of Ardour, 0.99.3, on a MacBook Pro, OSX Tiger. Any hints about what I could do to avoid this? Thanks

There is a thread on that on the ardour-users mailing list. Are you by any chance running jackd in playback only mode? If yes, run it in full-duplex and see if you can add buees then.

Actually I had to do that because there was some kind of bug in the OSX Audio/MIDI utility that prevented me from making an aggregate device having both inputs and outputs; however the bug seems to have gone now (no idea why) and I could add new busses to my session.