I'm trying to get ADE to work on my JBL. Originally, ADE saw the JBL as my Aztak EZ Reader. It saw the books that were on it, and let me move a book onto it. The book appeared to be there, in the Digital Editions folder. But of course, the JBL was never properly authorized so the JBL didn't see the book. I noticed that the file refered to above, the device.xml file wasn't there. So I redid my 16e FW upgrade, following the instructions in the sticky carefully. After the upgrade was complete, and before making any changes of any kind, I looked in the Digital Editions folder for the device.xml file. It is not there. And now ADE does not see my JBL at all. I made sure the JBL was connected to my computer before I started ADE, but nothing. I uninstalled/reinstalled ADE, but it still doesn't see the JBL.