Firmware Destroyed My Clip!

I did the same thing.  I upgraded to the new firmware and the clip wouldn’t recognize any songs on the player.  It didn’t delete the songs, it just didn’t know they were there.  The problem is the music database didn’t refresh when the new firmware was installed.  What I did was just copy another song from my PC to the music directory on the clip.  The database then automatically refreshed and recognized all the songs that were on the player.  Problem solved.  I love my clip!