Well, I've recently gotten an Iphone 4, and quite bizarrely, whenever I try to sync music to it, problems come up. As in, when I don't want to sync songs anymore, Itunes says it's done, but, when I get to my iPhone, I can clearly see my whole playlist is still there. Then, I reboot, try again, and only like half of the songs disappear. So, I had to go into recovery mode to delete them all, by recovering through my backups. Any ideas what the hell happened?