I recently bought a steel series siberia v2 headphone, and the mic doesn't work in game. It works in Teamspeak 3, but it will not work in CSS or MW2. In steam, i have made sure that it uses the usb pnp mic device, and i have set it as default device in Windows. I am using Windows 7 64 bit. Is there any way to solve this? Also, i am using the included usb soundcard.