So yesterday, I put some music on my ipod (5th gen), filling it up completely. When I went to listen to a podcast on it today, my podcast directory (which usually has over a hundred podcasts in it) was completely empty. I restarted it and the problem was still there. When I got home, I plugged it into my computer, and under the ipod in itunes, there was no "Podcasts" section. It has music, movie, tv shows, etc. but the "podcasts" heading is completely gone. However, when I search for an individual podcast on my ipod, they show up. What is going on??