So, I uninstalled my 2.0 and installed 1.7.2. There are a couple interesting kinks. I had to use Explorer as Firefox gave error messages when I tried to use it. I used a new authorization, one that I installed on another computer yesterday. It has only one book listed, an old expired library book.
So I thought I'd see what happens if I uninstalled the 1.7.2 and downloaded 2.0. It downloaded just fine and asked if I wanted to migrate my bookshelves from an older edition. So I did.
The interesting thing is that it is using the new authorization I put in with the first download this morning.
So I think all is well.
The 2.0 works fine for library books for me by the way.
Thanks for all the help. I may have to come back yet.