GRAW2 and R6 Vegas will NOT START (VISTA 32BIT) with these OR ANY OTHER driver above 158.45 , "professional applications" notwithstanding , the OFFICIAL WHQL driver 162.22 will not run these apps on my system and shadows are screwed on vista64. The problem NEEDS to be fixed I don't care what the driver was made for! rolling back (and giving up all the enhancements of the newer drivers because of "needless" incompatibility with 2 popular games) to driver 158.45 , because it works! damn shame!!