I have smart quotes ticked in my choices, and on the whole they seem to work.
Or they did. I was using double quotes for speech and found that after a comma
it doesn't give a closed quote. After a little test it does the same with a
single quote. When following a full stop (and other alphanumeric characters)
behaviour is normal.
Not noticed this before.
Using version 5.770 Dev (I've got the upgrade to update, but haven't got round
to it yet.