Dude,
sounds like yer library got corrupted...
Some of this might help - BEWARE! You can reformat the hard drive using these functions!!!
---
Remove the battery cover
Partially remove the battery
Press and hold STOP button
Slide the battery back into position - the unit should power on.
When the CREATIVE logo appears on the display, release the STOP button then immediately press and release the PLAY button.
The following options will appear on the display:
1).Clean Up (Performs a disk scan on the players harddisk)
2).Format All (Formats the players harddisk - Note: all contents will be lost)
3).Reload OS (Reloads the Operating System on the Jukebox. Note: Reloading your OS, will not effect the contents of the files stored on your Jukebox Zen)
4).Reboot (Reboots the device).
---
I have a feeling Option 1 rebuilds the player's database...
I will keep looking for you in the meantime...
You DO have another copy of your music elsewhere don't you? ie. theses machines use a 2.5" hard drive (like a laptop), which can and will fail eventually. If you have no other copy of your data, that would be bad...