Never mind, I found it after clicking the Playback Settings icon on the Playback controls. It is set to stop at the end of the piece, not measure 1, so that's not the problem.
Thanks for the thought. By text repeat, I take it you mean indications like D.C. and D.S. None of the scores I am trying to play back right now use a text repeat.
Where can I find the setting that tells it to stop on a certain measure? My playback stops immediately and I'm trying to see if mine is set to stop on measure 1. The green arrow just sits there at ...