After a good two months of ripping music, and enjoying my 500 GB B2, I awaken one morning to the surprise of all of my music being deleted, and the settings all changed to default. I have been careful to shut the unit down correctly each night. The setting now reads Brennan 6 GB. It seems the hard drive is now 6 GB, not 500 GB. Does anyone have any idea what happened? The information reads capacity 6.09 GB. Do I need a new unit, or can a repair be in my future? Or do I need a refund and forget the whole thing? Anyone, PLEASE HELP !!!