DRM activator issue

[Guest]

hello can you help me with the same issue as well:

"User's signature is invalid. PLease Reactivate.
Adobe DRM Activator error (server code 9.
Fault location:7
Contact Customer Support."

When going to the Adobe DRM Activator site :

Here's the problem and how to solve it:

You have tried to open an Digital Edition that was downloaded to another computer. You can open such a document on two computers onl
y when you have activated Adobe Reader or Acrobat on both computers using the same Microsoft .NET Passport or Adobe ID.

Problem: This computer and the computer to which the document was downloaded were activated using different .NET Passports or Adobe
IDs.

Solution: Return to the retailer, library, or other location where you acquired the document and obtain permission to open it on this computer."

[Beth_Bakeman]

To open a Digital Editions 1.5 Technical Support case, please use the contact links at http://www.adobe.com/support/digitaleditions.