So I've been checking out the new Physx-enabling Nvidia drivers and the Folding @ Home client. But I'm worried because my 280 is now making a nice high-pitch whining noise, which no game has yet managed to induce. Strangely (to me, anyway), if i reduce the percentage use bar in the client all it does it make the whine increasingly intermittent rather than the constant whine I get on 100% - seems like it can't reduce the amount of power it uses, just make the operations more sporadic (but just as intense when they occur???). I'm kind of worried that I may do long term damage to the GPU if I keep it going. Is anyone else using it? What results are you having?