After confirming the problems GeForce 196.75 Drivers had with fan speeds, Nvidia releases GeForce 197.13 for GeForce 6, 7, 8, 9, 100, 200, 300-series and ION desktop GPUs, but not for the new GTX400 series. Aside from fixing the fan speed/overheating bug, there’s also quite a few additions bundled in.