The same error message.
I called Customer Service and Tech Support of Adobe and they were very unprofessional. They said to me that because I have no license and because this is a free product, the Adobe Digital Editions, they are not in obligation to offer a telephone support! This is a big shame for Adobe and I think that we have to sue them for misconduct of their customers. Why if the product is free? Because other companies, such as eBooks make money selling ebooks referring to Adobe to download it for the ebook opening.
Please keep posting your messages for the next step in resolving this problem. I don't want to sink my money because of Adobe. Of course I could not cancel my order from the ebook web site, they took my money and they dont care how we could open them.
Thanks