Thanks for the welcome and quick replies. This seems like a great community.
Battery pull did not work, but it was a good suggestion. The restart did appear to result in me being sent a service book, but maybe it was random timing?
With respect to the 2nd reply, I have the OS that came with the device, which I believe is 4.2.2. I have become really interested in getting the latest OS after finding this site and reading, and I am downloading it now and will install it in the AM. I will let you know how it goes.