I have installed this via Automatic Update on Windows 7. Now I got rating down to 2.0 from 2.2 and deep sleep (hibernate after sleep) is not working anymore. I could fix deep sleep, but when I tried to roll back the driver - the option is not available. Installing Lenovo W7 drivers gives you same 2.0 I didn't feel much difference in Aero compare to 2.2, but sometimes it looks slower. Does anyone else expirience that?