I got the Intel D945GCLF and cannot figure out how to flip the microphone in port on the board to be a LFE (subwoofer) out port like I did with my old M10000. Has anyone done this? I installed every updated driver, all the audio drivers and I have 4 channel sound right now. I just cannot get 4.1 sound going.....I'll even settle for 2.1, I just want the subwoofer. Anyone know how to get this board to flip the microphone port to LFE?