(If I sound kind of dumb, thats because I am a newbie) I have a Nvidia 8600 GT Eagle 512 mb (the rest of the components are an Intel core 2 duo 2.66GHZ E6700, 5 fans on the case, 650Watt Power supply, Asus DW5 DH deluxe motherboard, 2 GB ram) On average the temperatures on the card are around 57-56 C. When I run ATI tool (when I run the 3D view) the temperatures skyrocket, sometimes to more than 85 C (once it reached 90. THe strange thing is is that the card is not overclocked, and this happens when I just render the cube in ATITOOL (the 3D view). All the other components stay below 60. The worrying thing is that as soon as I reach above 85 C the screen begins to flicker and artifacts appear, so I ahve to switch off ATITOOL. It usually takes about 30 sec. Is this normal (I have a fan installed on the GPU, running at 100%).