You know 3D has a long way to go when even Jerry Jones can't manage to sell it for longer than seven minutes: the vaunted real-time 3D scoreboard display experiment at last night's 'boys / Chargers game was turned off to loud cheers after just six minutes and fifty seconds of being active. The problem, as usual, was glasses: most of the 80,000 people in attendance didn't bother to put on the headgear required to see the 3D effect, and instead saw a blurry anaglyph image -- which they then booed. What's more, some who wore the glasses complained that the 3D effect caused nausea -- although probably not as badly as the Cowboys' 17-20 loss to the Chargers. HDlogix actually has the tech