Hey guys, I signed up on this forum just to ask this question as hours of searching did not give me any answers. I have a brand new MBA 2013 model that I got a little over 2 weeks ago. I had lots of fun with it, it is my first macbook ever. I noticed this problem when I called my friend on Skype. He could hear my computer's internal sounds (ex: music, video, games etc) even though I have headphones on. In fact, he could hear it clearly as though it was playing on his computer. (I use the standard Apple EarPods, by the way) I'm not sure what the problem is. Is this a natural thing for Macbook Airs? It's very inconvenient because I have to mute everything when I get a call from a friend on Skype so they won't hear whatever I was doing. Help!!