Hey, I was running iTunes on my Windows XP and the songs stopped working. They are all there, there are no exclamation points anywhere. My computer recognizes that they are there. When I highlight them and click play, the play button changes to a pause button (which should mean that it is playing. WHen I do this the song doesnt play. It just sits there doing nothing. I downloaded and istalled the new iTunes. Same same. Whats up?