i have had the same problem. it seems in my case to be adobes fault for not recognizing midi the way other daws do. Ive talked to tech and downloaded midi-ox, a program which lets u see how windows sees your midi ports .. in my case it used to work perfect now it still does with other daws but wont even respond to adobe audition. and the only way is to reinstall my os? i dont have my os disc so im into looking for a new transport right now, maybe roland r16