Just installed the Windows 7 Professional in my computer and as I say I am not very much familiar with this operating system. I have used the Windows vista and windows XP. I know that it is a upgraded version but a little bit advance. The thing is Stereo Mix is together disabled in addition to muted therefore I'm puzzled since to why my PC is not picking up my microphone except in its place I am only hearing computer's outgoing audio. Does anybody know the proper configuration?