Okay, I bought a MIDI cabel, connected the keyboard to MIDI in/out interface on my soundcard, went under MPU-401 interface and installed a new MIDI instrument. However, when I select MPU-401 as a MIDI instrument then, it doesnt even make a squeak. Please, Ketron users, help me... Do I need some software (drivers?) ? Or should it be working, meaning my cable is wrong, i connected it wrongly or my MIDI interface is dead?