My GTX 660 TI SC started having performance issues. The initial boot of PC has frame rates in Far Cry 3 at ~25 fps. If I restart Windows 7 it has ~60 fps. If I shut down PC, and restart it will have the same slow performance issue. This restart of windows without shutting down fixes this issue . The only differences I see in Precision 16 is the Power% fluctuates wildly between 120 to 70 at first boot, and windows reset it stays approx 95 to 105. Voltages fluctuate more with initial boot also. I have reinstalled Nvidia Drivers with no resolution. Anyone else having issues like this?