Hello, I can use the wk 200 keyboard through my PC (windows xp) using a software called MIdi Piano (so the connection I guess is ok). When I try to use the software Casio SMF Converter and try to convert and send a midi file to the keyboard I get the message "there is no response from a keyboard. Do you want to set up the Midi device", even it is already set up. I want to import the file in the keyboard to use it in a lesson. Can anybody help me?