Thanks, Thomas for this suggestion. I would have never thought of that.
I just tried it and the outcome is that one movie experiment runs through completely, but after completion I get an error saying: “portaudio error in Pa_AbortStream: Unanticipated host error”. This error wouldn’t bug me if I didn’t get the same error with the other movie experiment, which now aborts about half way through. It’s progress, but not quite there yet. Any ideas? Thanks again.