Ah, that fixed it, thank you Brundlefly. How in the world do these preferences keep getting set? I would never have intentionally set that one. For others, it's in preferences, but it's not under midi, and not under project -- see "Customization - Editing". Grr.
Sorry I didn't remember the same problem from earlier. I'm sorry to say there are so many little problems like this, and as I get faster and faster at just groaning and working around them, I try to move on and not get distracted from music by irritations with software.