Have you tried formatting it? Mine did the same thing but i formatted it and start fresh. Be careful when formatting this system. There is a certain file that you need to back up. The file is FW_IMAGE.BIN. You may also want to backup all your MP3 files. After formatting your YP-910, re-start your napster and download one song to your YP-910. When done, find the FW_IMAGE.BIN that you backed up and re-load it into your YP-910. That should do the trick.
Xxavier2
December 2005