Hi again, Larry. I'm on the latest 2015 (8) version of RB and don't have that button. odd.... Maybe it's because I don't have a large screen.

But I can set "speakers" as the audio out driver in preferences when I'm running MME. The midi out driver can be either Microsoft GS Wavetable Synch or Microsoft Midi Mapper. And neither will play SampleTank.

When I change to AISO, RB will not allow me to select either of these 2 midi drivers at all. Maybe if I can find an alternate free midi driver that AISO likes, I could get somewhere.