Hi!
Got hold of a pair of these babies yesterday after waiting since december of 2011, and everything has been working wonders for me (even the mic which people seem to complain fairly happily about, but in reality they just don't know how to set it up properly).
Anyways, I've noticed that when I am playing games, idling at the desktop or simply doing nothing with sound I get a buzzing / static noise coming from the headset which increases and gets louder when I load up heavy application such as World of Warcraft. Now I know that this is not an issue with the headset itself, but with my PC's electricity not being grounded properly.
So I searched quickly for a solution and found this guy posting a youtube video telling me to get an USB hub and all this would go away. Said and done, after work today I helped myself to a very popular hardware & software store and got myself a deltaco USB hub for the cheapest price they had ($4).
Once home I plugged it in my PC, plugged the tiamat into the hub and anxiously await the results. Nothing. Buzzing was still there, maybe even louder than in it's original place.
So here I'm sitting with my tail between my legs. Was I fooled? Is there really an easy way out for me here? Or am I forever doomed to hear this annoying buzzing all the time? I feel that since I've gone so far to get a good soundcard and a good headset I might as well go all the way.
TL;DR: PC is not grounded, how to get rid of buzzing noise in headset?