At the moment i try to open an ebook i downloaded, it appears a text box saying that theres an error obtaining the liscence, how can i make it to work?
You can simply download the ebook and open it in ADE and read it. You might be getting that license error, if you are trying to open a licensed ebook. So, make sure the ebook that you are trying to open is licensed with your adobe id. If not, then you need to contact the ebook vendor.
For now, try to download the below sample ebook and try to read it. If you are able to do so, then it means your ADE is fine. Instead, its an issue with that particular ebook.
[Moved the discussion to Adobe Digital Editions Forum]