Mac OS X users may receive the error when opening ebook content in Adobe Digital Editions 1.5 or later:
Adobe DRM Error
Your Adobe software could not be activated.
Failed to load XML.Whitespace is not allowed at this location.
Eden Info: (0x-1072896749) Failed to load XML.Whitespace is not allowed at this location.
Soap Info: Client : Client
Adobe DRM Activator error.
Server Code: -1072896749
Fault location: 7
Contact customer support.
You have a high ASCII character in the name of the Mac.
For example, a computer name of "Bob&Gina" may cause this error. In this case the ampersand is the problem.
To find the name of your computer read "What's my computer's name and address?" at http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh632.html.
Note: The OS X computer name is not the same as the name of your internal hard drive.
Ensure that a firewall or proxy server is not catching the necessary header exchange between the Adobe activation server and your machine. To see the necessary headers, read "Error: "Adobe DRM Error" when you activate Digital Editions or access an eBook" (TechNote kb402747).