Thank you! Thank you! The encouragement was just the boost I needed at this point.
I'm certainly not tapping my foot or sitting idle; I'm glad to hear that my questions are important to you, and that you're still working on the answers. Your excellent customer (student) service and personal interactions are encouraging to me as well as to others who I tell about this course who are concerned about me teaching myself...
Thanks and send my thanks to the rest of the team for me.