Google deprecated the API that the Calendar Gadget was using. For its replacement, we made a Calendar Widget. You'll need to remove the old Gadget (save the calendar ID first), and then go to Add > Content > Google Calendar. Add the calendar ID to the Widget and then save and publish your Presentation.

Yes, that's the Presentation I'm looking at. When I try the Presentation, I don't see any errors related to the Calendar Widget. When I try the calendar ID itself to see the upcoming events, it doesn't provide any.

One possibility would be to check to ensure that the option for only sharing free/busy information is *not* checked in the calendar's settings. This can be found on the same page as where you share the calendar.

Someone else created the calendar and shared it with me. It is public and I have privileges to manage it. I thought it was not showing up due to the fact I had it set to show 'day' and since there was nothing on the calendar that day, that was why nothing was showing up. But, I changed the setting to show 6 months and still nothing shows. Arg!

So I found my problem at least. I saw references in various posts about the "range", but missed that option in the configure window. Unfortunately, the "range" setting is hiding in the section where the date formatting options are set. Once I found it and changed it from the default of "Day" (which makes no sense), it displays my events.