Supposedly a way to listen to audio over both headphone jack and HDMI, but not working for me

http://www.addictivetips.com/windows-tips/how-to-play-audio-through-hdmi-speakers-simultaneously-in-windows-7/

http://answers.microsoft.com/en-us/windows/forum/windows_7-pictures/is-it-possible-to-get-audio-in-windows-7-through/ac278bd7-4bc3-41d5-9713-669abfccba22?auth=1