I Have a New system i just put together and its a highly custom computer so i cant go into all the details but to be blunt, im running vista 64 on a i7 920 cpu, and im idleing at desktop but it shows the cpu at 100% utilization all the time and even after reboot. The CPU is running 134 F and its got 1 hell of a water cooling system on it. Theres no bubbles in the block and the 120v pump is definitly pushing water. It has a 1000 watt radiator hooked up and its like a 130w chip. Im currently waiting for my 275 gtx waterblock to arrive to finish hooking up the water cooling system and at that time i have an aquarium chiller to hook up to this thing as well which should take out another 10 degrees under load. But the thing is, it should be running around 100 to 110 underload. But the Question is why is this thing idling at 100% utilization and i cant get the cpu to drop its load.