My wife uses her ipad mostly for reading books. She has downloaded hundreds of books and can not figure out how to delete them. She goes to the ibooks page and it shows all of the books, in the upper right corner she hits the select button and then she selects the book she wants to delete and hits the delete button in the upper left corner. It then says book has been deleted but the picture of the book is still there. She can start over and do it again and everything does just like the first time, it says it is deleated but it is still showing on the ibooks page. Any help appreciated