How do I ground my mic/PC, I just bought some Razer Kraken Pros and they are having this humming noise. I know they are not supposed to sound like a studio quality mic but I expect them to at least not have static/white noise. I have noticed that every time I touch my metal computer case the hum goes away. I'm guessing its stoping because i'm grounding the mic/PC. So now I need to figure out how to do it without having to have my hand on my case all the time.