I have the same problem... my nf610 type s is connected to the usb, I hear the sound from the windows but sonicstage doesn´t recognize it nor 1.5 from the cd nor 3.1... the unit displays pc>>md but nothing happens .sonicstage nor simpleburner recognize it I have another problem... only right channel works on MD play mode... both channels works on fm mode I´m using xp pro sp2 from Brasil, Newronio