Ardour seems to now start play as soon as I move the timeline to a new point, or when I click the return to beginning button. I’m not sure if either of these actions caused it, but the last two things I did to configure Ardour was to edit .ardour2/ardour.rc to fix the mute button problem, and to turn MMC off, as I kept getting MMC errors and I don’t need MMC at the mo.
D’oh! I’ll double-check for that next session. Thanks!
It will do that if “auto-play” is enabled (buttons to the right of the transport clocks.