Quote:
Originally Posted by sespr
You misunderstand. I was trying to open the book from within Calibre on my laptop. The files are there in the folder. In fact when I click once on the book it shows in the right pane that the book is in epub and mobi format and yet when I try to open the books I get the error message. I have looked in the folder and the books are there.
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Will any book (same formats) open?? Something may have glitched the Use Internal Viewer Formats list (Preferences: Behavior)
Run the Library maintenance utility if the behavior was good