NVIDIA has just released new GeForce 197.13 drivers that take care of that fan speed issue that a lot of you were having. Grab the Windows XP 32-bit and 64-bit versions here and the Windows 7 and Vista 32-bit and 64-bit here.
NVIDIA apologizes to any GeForce owners that installed the 196.75 driver and experienced quality issues. For the small number of customers that did experience problems, in almost every case reverting back to our 196.21 driver immediately resolved their issues. We continue to work closely with our add-in-card partners and PC manufacturers to help resolve any additional customer issues not solved by reverting to the earlier driver. Any GeForce owner who has questions about their board as a result of downloading the 195.75 drivers should contact their board supplier.