Stereo mix not showing up on Vista + mic hiss problem

I have Windows Vista and I tried recording from the stereo mix on audacity and fruity loops. I tried looking around different websites and none of them have seem to have found a solution to my problem. I right clicked the volume icon and selected recording devices then I right clicked and selected "Show disconnected and disabled devices" still nothing shows up except the microphone. :(

I have a built in mic and whenever I plug in another mic through the microphone jack, it records the built in mic and the mic I plug in. It's really annoying because the built in mic has a hiss. It doesn't show up as a separate microphone device either.

Here's a screenshot:


:shock: So many problems with Vista... the specs on this laptop are amazing for audio recording too! :(

when you plug the device in does windows detect it and start looking for drivers?

when i plug the mic into the microphone jack in front of the laptop, it doesn't pick up any other recording device. The microphone works, but whenever i'm recording something, it picks up both the built in mic and the mic I plug in. (the mic's just a simple computer one and it didn't require any drivers on my xp laptop.)

DId you disable your built-in mic? I see on my vista that you can disable it. BUT i dont have another mic to plug in so im not sure if that would help or not.