i set my songs for gapless but they don't play that way in my 5th gen ipod or ipod nano. is there something i need to do or does that feature only work with new ipods? also, when i updated to itunes 7.0.1 and updated my ipod, it said i couldn't transfer all of my files because my ipod software was too old. however, it said on the ipod that it was up to date. what gives?