I have recently noticed just within the past couple weeks that my iPod seems to randomly not play songs that it has selected by shuffle. It will select a song and display its title, try to play it, and then skip to the next selection. I figured maybe some files were corrupted or some such. But then today I purchased some music from iTMS, transferred it to the iPod, and noticed that none of these songs will play on the iPod. There must be some connection between this behavior of skipping tracks and the purchased status of a song. Has anyone else had this problem? Does anyone know how to fix it? Thanks.