Thanks, daflyboys and oldtimey. There is an extra layer of menus that I wasn't familiar with having not played the game for so long. It appears that the choice of selecting the controllers is presented twice. I was only dealing with the first menu/choices that would remove the GO! selection whenever I chose "CPU". Now I know I can get past that to make the selection during the second set of selections/choices.
THANK YOU both for your help!