After entering notes in Editable Notation mode and saving the file, when I reload that file the notes are gone. Also if I enter notes in Editable Notation mode and then try to play them, the notes are erased and replaced by automated Band in The Box music.

How do I preserve edits that I make to a song and play that song without losing my edits?

I'm using Band in a Box 2009 on a Vista PC.