I have just purchassed a MC-80 ex, but I'm still unable to directly select the different sounds of the expension card. I only have access to the 64 first sounds (there are over 1000) using my keyboard. THe other way is to creat a program change at the begining of a song, start the sound, and then listen to it. To do this over 1000 times just to listen the different sounds is pretty ridiculous, but up to now, nobody has been able to help me, not even the guys at the store were I purchassed it. Does anybody know how to do this?