Cant delete certain tracks from m250

I deleted a few tracks from my mp3 player and while they no longer show up on the computer, they still show up on the mp3 player itself. How do i delete these files without having to delete my entire player?

Did you ever get a response?  Or find an answer?

I have a similar problem with my m200

I had the same problem I finally just deleted everything and started over, now when I play it it freezes on some song and will not let me pass them,Good luck