The Inq wonders whether NVIDIA's Quad SLI technology is dead as support for this technology is still lacking for Windows Vista:
The Green Team is yet to release a driver which enables Quad SLI - the running together of two 7950 GX2 cards, themselves dual-card 7900s - under the Microsoft's latest operating system. Prior to the 8800 release, Quad SLI was heralded as the top-performing graphics system, and gamers paid as much as $1000 for the pair of cards with the promise that this was gaming nirvana.
Nvidia's own press release from last year tells eager buyers that "By taking SLI technology to a completely new level, we give PC builders the ability to create an exquisitely engineered gaming PC that is in a class by itself."
The release even says that "NVIDIA Quad SLI technology is optimized for the upcoming Microsoft Windows Vista, the first operating system to require a dedicated GPU to realize its full potential."
So optimised, in fact, that it doesn't work. Quad SLI truly is in a class by itself - probably sitting, crying in the corner while all its SLI mates go off and play in pairs outside.