Hello all - I was on a plane yesterday, and pulled out my iPod to listen to some music. I turned it on, started scrolling through my playlists, selceted one, and it froze on the song list. I mean froze completely. It won't turn off, plugging into my G5 does nothing, it's just frozen. The text is still up on the screen. That was yesterda at about 5pm. It's a 2nd gen model. Any idea what could have happened to it, and if there is any way to get it to work again?