Share your experience!
if you spend days and days searching for nVidia Drivers for Vista 32/64
and you are frustrated because neither Sony, nor Nvidia does not provide the new drivers for 6,7,8 Nvidia series GPU's for vaio's check here:
http://www.tweakforce.com
I installed them and worked perfectly
or go to www.driverheaven.net, download the nvidia or ati modder, get the latest desktop drivers directly from ati or nvidia themselves and make your own mobility driver.