My built in sound card on my LanParty UT 250gb will not play sound in any situation. I have reinstalled drivers, installed NVidia's NVMixer and all other software that came with the board but it still will not play. My card is a 7.1 surround NForce sound card integrated into my mobo. On NVMixer the equalizer shows sound being played and there are no driver conflicts as far am I aware. Please help!