Hello, So I installed a new mobo and OS went to 8.1 but I'm getting sound issues with my sound card. I have a Asus xonar essence stx and for some reason any option but dolby digital live picked with headphone and 2 channel I get no sound or I get static when I try pcm option. any idea whats causing this? I installed the drivers for it and the drivers for my astro mix amp also and still same issue.