Hey Vincent -- thanks for that tip re the dual monitors -- the first one -- AandR was a real mess of a program -- might have been able to make it work if the instructions had been more than minimal as well as totally incomprehensible. Ended up having to unplug!! And, I have, it seems, totally lost the applications menu.
BUT, I then tried Grandr and that was a piece of cake. My hat's off to that team for sure.
So, it looks like I have ONE LAST QUESTION -- how can I get the applications menu back on the work bar (which was also shurnken to half its size by AandR? AND the menu that includes Shut Down???
Then I will ride off into the sunset. And, when I know more, I can come back and help somebody else, I hope.