OK I got a PowerColor Radeon X1950PRO 512MB card back in September and it started making a hell of a racket a few days ago so I contacted PowerColor to figure out what I could do as its obvious that the fan was about to go out. Their technical support started off nice enough but after they realized that they had a problem they told me that it was because dust had gotten into my computer and they weren't going to warranty it. Has anyone else come across this? How am I suppose to stop dust from getting into my PC?