Hello. I have a Yamaha electronic drum kit hooked up to an Edirol MIDI interface which then feeds into my laptop. I'm trying to record using Cool EDIT 2.0, but I can't find where/how to switch my input to my USB port (where my MIDI feeds into.) I've tried several things but to no avail - and it's driving me up the wall. Any help anyone can provide would be very much appreciated. Thank you.