I upgrade to 1.1.3 (from 1.1.1 before which I had 1.0.2) yest night using Ziphone. I was able to sync music with itunes and play them. However, after about a 12 hour hiatus from the phone, I am no longer able to play any music. The songs are there but it simply wont play. These are DRM free CD Ripped songs. I tried removing and syncing again. Any ideas what could be wrong?