I have tried 3 different ways to get this driver working in Vista Ultimate x64 to no avail. Twice I received a "nothing was updated" and the third time, when I basically took both x64 Vista versions of the drivers, extracted them and used WinMerge to edit the nv_disp.inf file to contain the appropriate info, if ran, ended really quickly, and then I reboot - only to still have the 175.19 drivers....