the keyboard is connected to the minimacman, minimacman connected to Performas printer port via the serial cable. I can hear the keyboard play from the keyboard. I can hear the Mac from the Mac. I cant hear the keyboard from the Mac. The minimacman's power light is on but the midi in and midi out lights dont shine at all at anytime. I am using OMS as the minimacman's driver. Anyone familiar with this type of setup? Im pulling my hair out, here....fugeddaboutit!