Just one day after releasing their promised Vista driverset, Nvidia has release yet another beta series driver, this one enabling the latent SLI support lacking in earlier drivers. Now, GeForce 6, 7 and 8 series cards will be able to have SLI support in Vista, though as a beta driver Nvidia is not giving any guaranty as to functionality. You can get both the 32-bit drivers and the 64-bit drivers. They aren't including DirectX 10 SLI support yet, but DirectX 10 titles are exceedingly few and far in between.