The ebook I borrowed and downloaded from Adobe Digital Editions cannot be transferred to my e-reader. An error message indicates that a permission problem is preventing the file from opening. How do I fix the problem?

Using Adobe Digital Editions version 4 (and later) with some e-readers may cause problems. When transferring an e-book from the Adobe Digital Editions library to the e-reader, an error message may appear stating that the file cannot be opened due to a permission issue. If this is your case, we suggest that you uninstall Adobe Digital Editions and then install version 3.