I go into my volume control and I can't find my microphone settings. My audio came with the motherboard which is a realtek ac97 audio. I find the Microphone setting in the sound within control panel, but it's on mute and won't uncheck. what should i do? I mean i go through the hardware test and the micro works fine as i can hear myself when i do the test, but can't when i do voice to voice like skype or msn. help!