@GreatGonzo: I can't see any possibility that installing jukebox interferes with other apps. [stopping playback at some times is a known bug).
I can't understand this.
Maybe the filesystem of CF is corrupt. Runnning a program which checks and repairs filesystems and bad clusters can be one option.
What happened after installing jukebox? Can you run the "update database" script? But you can't get sound output? Sound card is turned on? Get's the status message "song xy is playing etc" updated?