Jerry:

I tried your suggestion "1." above, clicked on the "Play Jukebox" icon,
unchecked all the options, and set my directory exactly as shown
(both WITH the back slash at the end and without).

I get this error:

"No songs available in this subdirectory. Open a song from another subdirectory then try again."

I have examined that subdirectory in Windows File Explorer and it contains 8,778 items,
all WMA files as near as I can tell.

I must be doing something wrong.
Help!

Thanks!
LLOYD S