Trying to think... when I installed the program the first time, it gave me options to install ambience and other things. I uninstalled it, removed the GameEX folder, and in the process of reinstalling... the Arcade Ambience option is gone. I checked Programs & Features... nothing of the sort is in it. I'm trying to think what is the correct COMPLETE uninstallation.
Just doing this so I know what to do when a problem arrives.