To play Music using Windows Vista Right Mouse Click on your Speaker Icon by your clock & choose Recording devices 2: On the New Window that has appered do you see ” Stereo Mix ” or ” What u Hear ” if so Right Click & ” Set As Default Device ( Enable ) 3: if you dont see either stereo mix or what u hear right click in the white area & tick ” show Disconnected Devices & Show Disabled Devices , you should then see either one! repeat step 2