Whenever I put in a note that has some option (e.g. accidental, grace note, etc.) attached to it, this option continues to be selected until manually disabled. This problem also continues into other staves, or even other pieces.
This is controlled via Tools, Persistent Note Tools (http://ntworthy.com/nwchelp/MNU_NOTETOOLSPERSIST.htm) (in both NWC1 and NWC2).
I thought this was going to be a percussion question (LLRRL RRLLR). :-P