Need advice on how to open epub documents on my Kobo. My Kobo ereader (it has wifi) will only open books that I have "bought" through Kobo. I have downloaded ADE and have authorized it. I can save the library books as epub documents, but they will not open with ADE when I click on them. I get a message saying that ADE does not recognize this type of file or it may be damaged. Any suggestions would be appreciated.