With the same cable situation, my master keyboard has work perferctly.

MY SETTINGS: ( Windows and FM7 )
http://fr.audiofanzine.com/commun/window.php?lien=/img/membres/normal/1/8/18886.jpg
http://fr.audiofanzine.com/commun/window.php?lien=/img/membres/normal/1/8/18885.jpg

"You have never said if you can now play the Casio 'into' the computer. Is that working?"
No, always

Thank very much for your post and help