Hi Mark,
Today I am able to move notes using shift+arrow. Why? I dunno.
At first I could not move a note in any file. Finally, I tried again to move the note in the initial file I was working on. It still would not move. I was able to change the half note to a quarter note, but could not move it to take the place of the rest. When the note would not move, I closed the program and elected to save changes (that was the only change attempt). When I reopened the program, the quarter note mysteriously appeared in the space I had attempted to move it to. It has been working ever since. It appears the editing gods were just playing with my head! Thanks again!
Fred