Thanks again Bilbo. I've just converted Futrelle's The Thinking Man Omnibus to ePub. I had planned to convert it to Mobi, but I didn't see where to make the choice. It just automatically chose ePub for me, which is fine.
It's big. It's an omnibus, after all. I probably should be experimenting with a smaller book. Over the weekend I will load it and all of my other recent downloads onto my jetBook Lite, and we'll see if it will display it.