I run Windows 8, on an Asus S46C. The one jack that I can plug my heaphones into appears as though it is used for both Mics and Headphones as indicated by the symbol beneath it. I use the laptop's built in mic. So now to the problem: When my headphones are plugged in my mic does not pic up sound. When I test sound in teamspeak (with headphones in) it doesn't pick anything up, when they aren't plugged in the mic works fine though. I have on several occasions gotten the mic to pick up sound with headphones in. Could someone please help me figure this one out?