media live diva

I built a new system with an MSI media live diva board. Amd dual core processor and a patriot solid state 32g drive. I used xp64. At first I had no LAN, no audio, and poor video. The drivers that came on the cd didn't work, infact it didn't have any LAN drivers except for Vista. MSI's website was the same, no xp drivers, only vista. I was able to find drivers for the video and LAN after hours of searching. Still no audio. In device manager, it showed the need for three audio drivers. 2 were high defintion audio, and one for hdmi audio. After a few more hours I was able to install drivers for one hd audio and the hdmi, but not the second hd audio. No sound. A third party driver software was also unable to find one. I tried xp, xp64, and vista. All drivers installed for Vista but still no sound. Any idea's? I don't want to have to RMA the board.