[Geoff Bacon]

Forgot to say that I stopped using gestures because I didn't find any that didn't result in false triggers during my normal playing. This resulted in page turns at inopportune moments.
You might have a better experience (depending on what instrument you play).
What I'm really trying to say is that you probably won't need/want to use them so the fact that the image is rotated won't affect how you use MS.

Geoff

PS Just seen Mike's reply so I'll give them a try again after he has issued 3.9.0