Sixteen wire dancers descended a giant billboard in Manhattan yesterday, to display the colors of Microsoft's Vista. The show, part of a gigantic $500m marketing push for the new operating system, was perfectly coordinated. Unlike Bill Gates' appearance on the Daily Show. The Microsoft founder, at the end of an uneventful interview with the late-night news show's Jon Stewart, abruptly walked off the set. Oops. Gates must have forgotten that lesson in media training: stay seated till the red light goes off and pretend to make casual chit-chat. "He can't just leave," said the surprised host. The clip, after the jump.

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