I'm confused about how 2.0 handles a few things...

I have MP3s that seem to be out on the HD of my empeg that don't show up in the playlist.

1) How can I figure out which MP3s are like that?
2) How did it happen? I didn't delete any just from the playlist menu...
3) Why can't you erase an MP3 from the playlist and delete it on the HD?

This is confusing to me... Anyone else?

- Jon