While you wait for answers, we may have found some information which could help you.
Click here for Player Creative FixedHow can I unfreeze my Creative Zen Mozaic (EZ 100, 16GB)?
creative volume control problem?
change battery?
How can I fix my frozen creative zen? It's tricky?
Creative Zen Sleek Photo?
Creative Zen X-Fi2 frozen in rebuild ,disc scan mode?