I plug the player into my computer and sync files using windows media player. it shows that all files have transferred (188) I can view them play them etc. When I disconnect the player from the computer I suddenly have only 55 audio files. Again, I connect to the computer and see all 188 files both in wondows explorer and in the windows media player. what has hapened to the filed and why do they not play on my player. PS is this player just a piece of crap or is there hope?