When i try to move epub book from PC tp ereader and error message says "Ce_copy_not_allowed. No permission to copy book. This is on a librarry book borrowed from the public library. Any body had this?

I had recently updated from Windows 7 to Windows 8.1 and thus had to re download Adobe Digital Editions. I downloaded Version 4.0 but the problem seemed to be with the authorization between the e-reader and the computer. While in ADE click the help button and click erase authorization then re do your user id and password. It worked for me.