Hey. I have an Asus P5N-E motherboard, with an onboard Realtek HD Audio soundcard. I run Windows XP Professional SP2. My problem is that even though the audio card seems to recognize the microphone (When I plug it in it asks me what I plugged in etc.) but it does not record any sound from it. I got the boost on and everything that people have said in threads with similar problems. I have CD Volume, Line In and Stereo Mix muted in the record part of the mixer, and Mic Volume unmuted. When I try to record, it just hears noise. Like when there's no channel on a TV. I've tried latest drivers from Asus website and drivers on the motherboard's driver CD. (The ones from Asus website was version 188.8.131.5224.) Another thing worth mentioning is that when I got it, the microphone was working fine, and the day after it suddenly was not anymore. All the same settings, nothing changed. I know the mic works (Sennheiser PC350 mic) 'cause I tried it on another PC, and it worked perfectly. That PC has a Realtek AC97 onboard card.