My PC seems to keep frying headsets I have gone through two Sennheiser PC360 and a Steelseries Siberia in 2~months what happens is the mic seems to stop functioning as a mic? for example if I use these headsets now and play music the people on skype with me can hear the music but not my voice first I thought it was the audio jacks so with the last headset I also bought a USB soundcard and plugged the headset into that but also this mic also broke so now I'm lost does anyone have any idea to what may cause this?