E250 Not Playing tracks

My e250 will not play any tracks regardless of whether they are on internal storage or the 2 gig card.  I turn the player on, pick an album/song to play and the correct screen comes up.  The machine looks like it is playing except the time counter stays at “-0:00”.  Sometimes I get an error saying “Bad Track” and sometimes I dont.  These were all good tracks yesterday.

Has anyone seen this?