Perhaps instead of simply stating this, you should have been looking (or listening) for the response, to which you'd discover that the AGP architecture is fundamentally limited to a single port.
Yes, I have known about this and whined about it before on more than one occasion.
But people can want something that is not easily feasible/at all possible.
And it is still a good idea for what I said, as dual screens rock, rock on!
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Enahs
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