With XP, I noticed the Realtek Audio drivcers do not install from M$ update. So first go into your devic e manager and make sure the drivers are installed for the HDMI audio.
If you dont have the HDMI audio drivers installed, get them from Realtek:
http://www.realtek.com.tw/downloads/...3&DownTypeID=3
You will also have to go to your audio in the control panel and enable the audio over the HDMI. I bet it defaults to your PC speakers.
Enable Audio Over DVI and HDMI in Windows XP or Windows Vista :
http://digiex.net/guides-tutorials/4...ows-vista.html
If you dont have the HDMI audio drivers installed, get them from Realtek:
http://www.realtek.com.tw/downloads/...3&DownTypeID=3
You will also have to go to your audio in the control panel and enable the audio over the HDMI. I bet it defaults to your PC speakers.
Enable Audio Over DVI and HDMI in Windows XP or Windows Vista :
http://digiex.net/guides-tutorials/4...ows-vista.html