Thanks for the explanation, Vincent.
I had watched that Module previously, as you surmised. By clicking on it in the menu and then immediately clicking on the viewing pane, I have been able to see the progress bar and pull it back to the start.

It's a bit tedious but at least now I know. The nature of Learning Center videos is that most people would want to view some of the modules multiple times so I think it would be a good idea to implement your suggested fix ASAP. Which, of course, is a standard feature in most PVR's.

Thanks again,