I download some files (from a Roland site)that are supposed to allow me to get the factory presets back by playing them into the Keyboard. As I understand it, they are audible files that need to be played into the keyboard via a 1/4" cable. Is this correct, and can anyone give me some helpful information on how I might be able to accomplish this? Regards, pAndAmOnkEY P.S. I have the orig. manual still and have read it but would just like some tips etc..