I am having a problem with my headset, it is a Turtle Beach X12 Headset. I am having a problem with a buzzing noise with my microphone. I can play on my Xbox 360 as long as I don't have the play-and-charge kit plugged in, but my bigger problem is when I use the microphone on PC is produces a buzzing noise. This is amplified depending on how the volume is set. So does anyone have any ideas of what is causing this, or how to fix it?