I have three monitors connected and all work correctly. I can move work from one the other and use each to do a task while on another. I want to set up surround, the Nividia site says this card will handle 4 monitors in 2D. But when I go to the surround set up, it sees all three connected monitors, but when I hit configure it tells me I can only select 2 of them. How do I get it set on in 2D?