i have a windows vista. i plugged an HDMI from my laptop to my tv in the bedroom and everything was fine, but when i plug it into the one in the living room ( A sony), the pictures works but the audio doesn't work! i already went to device manger, enable high definition audio as well as right clicked the audio icon > playback devices > and set the HDMI to default.. those didnt works and nothing works for this. Can you help me get my audio on? Firebred? anybody?