I have had a BS2 for a long time and am probably more experienced with them then even the engineers who made the damn thing. Firstly is it playing the tracks in a set but wrong order? If so then its in the wrong mode. It is in iTunes when it should be in windows or vice versa. If it is playing the actual trtack starting half way through, then its pretty much busted. As strong as they seem they can break. Mine gave me excellent servce for 4 years, when one day I dropped it, in an attempt to break the fall, I kicked it. A bit too hard, it flew in the air, hit the ceiling and bounced back down on the wooden floor. There was no physical damage, not even a dent. But the music would play in slow motion. If I shook the player the music would go back to normal but only momentarily. Eventually I had to have it fixed, it cost £190.