Digital Editions 4.5 - Activation error E_ADEPT_XML_SYNTAX

[patrickcarlin]

I just downloaded ADE 4.5 to my SurfacePro 3 with Windows 8.1.  When I attempt to authorize my computer using my Adobe ID and password, I receive the following error message:

"Activation Server error

code: E_ADEPT_XML_SYNTAX https://adeactivate.adobe.com/adept/ActivationServiceInfo

Digital Editions encountered an error on the activation server."

I attempted to chat with someone at Customer Care about this issue, and they directed me to these forums.  I have searched these forums already and have not found a solution.

Help!

[gethernm]

I have the same Error. Please someone help?