I just noticed that my ipod touch (Firmware 2.01) refuses to play some of my songs. The selection of those that are not played seems to be random. Instead of playing them it just skips to the next song without further notice. I noticed that all songs play just fine in itunes 7.7. I even sense that the same songs, that are not played now, were once played without problems on the same ipod. Any ideas, solutions?