I'm having trouble with the mic. In every steam game I've tried, whether I have a mic plugged in or not, whether mic is disabled or turned on it doesn't work. It will make repeating noise. Like in L4D when I click mic test, it will play part of the into song and repeat it until static. I have Vista 64 and latest driver. Any suggestions?
edit: Figured it out. Sound>Recording>set microphone as default device
Also for people having trouble with interference from GPU - Position of the card in the slot seems to effect the amount of interference/humming you hear. I first tried it in the 1st PCI-E slot and it wasn't fitting right, it would hang down a bit before I screwed it in. What I noticed was there would be no interference when it wasn't screwed in, then when I screwed it in there was a large amount of humming when using headphones. I played around with it, adjusting it different ways. I ended up switching it to the second PCI-E slot, where it fit better and gave considerably less interference. I also loosened the screw a bit and that helped. There is still some humming on occasion, but I can live with it.