found this on the support site. (Tech) Sound problems, AC97/Realtek sound chip Published 06/06/2012 05:33 PM | Updated 09/18/2012 05:22 PM I am having sound problems, and I have an AC97 or other Realtek sound chip, what else can I try besides updating my sound drivers?If you have already tried updating your sound drivers…
I also have the same issue. Character selection. Audio is Unknown Once in game Audio shows as Realtek HD audio but still no sound. I have the latest audio drivers force verify did not solve the issue either.