I am having a weird problem. Some songs on my iPhone display a wrong artwork - for example, a Bruce Springsteen song will display a U2 artwork. But the same song shows the correct artwork on iTunes! If I delete the artwork in iTunes and re-copy it, then it is shown correctly also on the iPhone, but after a few days a new set of songs will experience the same problem. Does anyone have any ideas of what is going on, and how to fix it? Thanks!