some itunes songs "grey" and won't play on iphone 4S?
I have a 4S, my first iphone. I did a sync from itunes, and some of my music appears "grey" on the iphone, and won't play. For example, I have Adele's 21 CD that was downloaded in apple lossless, and only half the songs are playable on the iphone- (i did convert all to 128AAC for the iphone). They are all listed on the iphone, but half are black and play normally, half are "grey" and won't play. So the song shows up on the iphone but won't play. Does anyone know why this would be happening? The songs play perfectly well on my iMac. The same music sync's to all of my ipods without a problem...