Ok so the cooler started to make some noise today. I took the card out, unscrewed the black plastic top cover thing off of the HSF and cleaned the dust out. I made sure everything was good, and put back together. I put it back in and it faintly made the noise until I got to windows. Now... the noise isnt a whining or anything. Its like a rubbing. Its not making it now, but Im kinda anal... so should I waste my money and buy one of those arctic coolers or something? I dont really want to, but im just looking for some opinions. (oh if it maters, I have the XFX 7800 GT OC Extreme card which is black and green) ITs not making any noise now, so im guessing it might have been a dust clod or like that black cover maybe got warm and warped in or somehting... but i suppose if its just rubbing, it would eventually rub itself away and the noise would go away. But its not making any noise right now. I can hit the case and move it and everything and it wont com back. Should I be worried?