Hi--thanks for your response.

Those are indeed the exact settings I have been using happily all along.

Last night, however, even after having them in place, the Audio channel switched after recording to display that message (wish I knew how to attach a screen shot in this reply)

I figured out how to fix the stereo using the

Audio / Edit Audio/ Convert Channels function

but I would rather it be as before, and simply record in the settings I have!

Cheers,
Tom