I have had my Kindle 2 since Friday...I read one book without a problem. Book 2 seems to have an issue...every time I turn it off and then back on again it goes back to the beginning and not where I left off. So, I downloaded another book and this one seems to be working as book 1 did - no problems. What can I do about book 2? I never finish a book in one sitting and it will be such a pain to have to page through the entired book to where I left off?