i have a raedeon 3650eah hdmi compatible i have connected to my hd ready tv and i have a perfect picture, it works on the hdmi channel but i have no sound,sound comes from my pc speakers, i have 3.5 mm jack splitter connected to wave usb audio for more control and that runs 2 sets of desktop speakers really well, i also have a 3.5 mm jack to RCA (R/L) jack, but i am unsure where to put it into the tv to get sound when on the tv av channel hdmi,i have tried different combinations and i can even get pc audio through my hi-fi stereo system but not through tv speakers on hdmi channel.any help appreciated thnx in advance.AJ.