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 only 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.