Hmmmm.. Well I use Turtle Beach x11's, which as far as I know don't require any drivers?
Or do you mean drivers for something else?
Generally speaking you will have a driver of some kind either for your headset if its a USB one if it plugs it it normally plugs into your sound card.
The other important thing you might need to look into is the volume control of team speak. The thing that can change the sound levels of different applications. Other than that Im out of ideas.
Even the smallest donations help keep sc2sea running! All donations go towards helping our site run including our monthly server hosting fees and sc2sea sponsored community tournaments we host. Find out more here.