Hello. I have Windows 10 and Adobe Digital Editions 4.5.2. I am trying to download epub books from my library and put it on my Nook to read. When I download the file, I can see the book in Digital Editions, but it doesn't let me click on it and the File, Library, and Help are all greyed out. I can't even click the X to close the window, I can only close it by going to Task Manager. Please help.
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