Sansa Clip Firmware For Hardware Revision 1.0

I am experiencing the same problem as redcow. The firmware update went smoothly, but when I turn on the device, no music is available - everything shows empty: albums, songs, artists, etc. When connected to my computer, the music is there, but not on the Clip. Has anyone found a solution to this problem? I’ve never had this happen when updating firmware before. Help!