[JannyOlree]

I have been working with Calibre for a number of years now and never had a problem. Now I tried to get my backup in and when I open a book it sais:
Fault: cannot show
This book has no avalable format
OK or copy to "klembord"

this happens with lots of books in Calibre now?? I am desperate. Can anyone help me in Dutch because English is not my strong side.

Kind regards, Janny

what is post a poll??
Please help me!!!
Janny