>so i have a casio cz-1 and a yamaha tx81z synth MODULE and i wanna be able >to program the module with soundiver but at the same time be able to preview >the sounds im making by playin them on the cz-1's keyboard. I realize there >should be a way of connecting it so it works but so far no matter how i >connect it sounddiver cant find either the yamaha or the casio. Are you running on Mac or PC? If Mac, you must first configure AudioMidi setup to see your gear, including your MIDI interface. Regards - Colin