After using 327.23 WHQL's now since the 20th.... I've found they are unstable in comparison to.. again.. 314.22 WHQL I am having micro freezes where my mouse becomes unresponsive, and then it comes back and continues on like nothing happened. Yesterday I had my pc lock up needing a hard reset to recover. I've had this installation of Windows 7 going for about 3 months now using the 314.22's and it has not once had a system freeze or lockup or any sort of unwanted behavior. Going back to 314.22.