Please help. I was given an iPod Touch around a month ago. I bought the 3.0 software almost immediatly. After a while, I noticed all my purchased songs would not play. Specifically, they would play, but no sound would come out, either with or without speakers. BUt the next song I play, one from a ripped CD, would play no problem. After that, I noticed that the apps I bought (all free, for example, yahoo messanger) wouldn't work either. I'd open them, and they'd close half a second after being opened. I assume there's some way to authorize my iPod to recognize my own purchases, but I can't figure out. THank you, will be checking back soon.