I am using the current Calibre package from Ubuntu 12.04. I use it to manage all my ebooks, through I normally read the ebooks on a Nook reader. When I turn the Nook on after a complete power off, it remembers the book I was reading but not the current page. It drops me at the first page of the book every time. Sometimes, I get a message that the book has been read on another device and there is a remembered page number for that device. In these cases, the remembered page number (for the other device) is correct, except I have not been reading the book on any other device. Most often, though, it just drops me at the first page of the book and I must seek the currently-being-read page manually. I am reading EPUB format ebooks, and many of the ones I am reading have been converted to this format by Calibre. I expect the Nook to go immediately to the last viewed page when a book is opened. This is the way it works with books I have purchased from Barnes and Noble.
Are you saying that the convesion done by calibre was faulty?