Just finished building a mini PC for my living room and the audio is popping when for instance switching web pages and the sound configuration utility is only showing a two speaker system. I'm running my audio and video through my video cards HDMI port into my TV which from there runs a fiber optic cable into a Harmon Kardon AVR 240. Any suggestions? Should I cut the onboard sound off in the BIOS? Since the nVidia HD audio is being used. Thanks in advance