I got things to work. At first I could then record notes but still not hear them. Finally after fiddling several times again, I got sound.
The Solution was to have all checkboxes UN-Checked, and to have the numbers 1 to 16 in the same preference menu checked (grey).
So the recording and not hearing notes issue has been solved.
I don’t know if I should post in a different message for the last related question: Using my keyboard controller, everything is now working fine. Using my “yourock guitar synth” it is not. The Yourock for some reason causes and endless loop of note feedback when I play it. The last notes sustain forever til I hit the record tab to clear it off. Using my keyboard does not produce this… The notes stop when they should after I play the last one. Any idea, or should I repost this as another topic? And thanks for the previous answers which led to the solution.