Can some one help me. i Have xonar dg and logitech 5.1 z506.After reinstall win 7 my center speaker and subwoofer dont work. Before the the reinstall everitthing was working fine. I install same win7 as the last time and same drivers. when i open asus media center and try to do speaker test i see visual notification that speaker working but i have no sound on that center speaker and the subwoofer. Can some one help me plss.