Thats fine. That app stresses your video card like crazy, it would never, no matter what, get that high in a modern game. During Source my 6800 GT went up to 79C, and during rthdribl it goes up to 94C at full screen. I got a good aftermarket cooler for my video card, and myrthdribl temp dropped to 70C max. Source went down to 66C. I don't think there are any aftermarket coolers for the 7800 GTX yet, but there soon probably will be. Universal video card coolers might work though. If you think about it, try the zalman vf700. It cools well and is quiet too. I would recommend the thermalright V1, its the one I got, but I dont think it's compatible with the 7800 GTX.