Thank you Grahm for your advice. But when I installed the Logos 5, all of my bibles and books from my Logos 4 Scholar and Platinum disappear. I only get very few books, none of which I use. There are no bibles. I thought when I install the Logos 5 engine, I would retain all of my books and bibles. It did show two books that I had in Logos 4, but said I didn't have licenses for them. Why??? Also, I tried the updated Logos 4 that you sent the URL for. Unfortunately, tat did not work also. I get "Logos Bible Software 4 has stopped working" error when I try to sign in.7853.Logos Log Files.zip. Any more ideas. I tired a uninstaller program and then tried to reinstall a few times before. If my computer had not crashed from the Windows 8 update.... Oh well, maybe there is something else we can do?