Found it! I was reading what you wrote and somewhere between my eyes and brain, there was a short circuit. My eyes saw 'Upcoming Events', but my bran heard 'Calendar'. Got that sorted out. In the sidebar, I have what you would see in 'Posterbord' view (but in one column). What I would really want is a mini-calendar, in which one could hover over a colored date (indicating an event) and when clicking the colored date, the detail of the event would expand. To see what I'm talking about, log to <arklatexmoaa.org> and look in the right sidebar.
I'll keep play with this and see if I just need to hit the right combination of checkboxes, or maybe what I want isn't doable.
Thanks for your help.