I have a problem with the iPod part of my iPhone. I listen to a lot of podcasts, and I love how it remembers where you left off. Only now, it sometimes doesn't register that I finished a certain podcast. I'll finish it, but when I go back into the iPod it will say that I hadn't listened to it all. If I fast forward to the end it will register that I finished it, permanently, but that's just a nuisance! Do you know how I might be able to fix this?