Ok, I'm having a problem with my built in mic. I have a MacBook and I'm running 10.4.11. I turn the volume on the mic all the way up. I say "hi." The volume on the mic goes down a little. I say "what are you doing?" The volume on my mic goes down another click. Pretty soon I'm shouting, "What do you mean you can't hear me?!? You slag!" Not good if you're in public. Anyhow, this is what happens. I'm using skype. I don't know if that is related to the problem. I can get by adjusting the volume every time I say something but that is, as I'm sure you can imagine, very annoying. Please HELPPPP!!!!!