I am using an AMD Radeon HD 6670 graphics card. On the AMD Eyefinity FAQ ("What is the maximum number of monitors I can connect?"), it says the 6600 series supports up to 4 monitors. On the card itself, though, there are only the 3 legacy connectors (VGA, HDMI and DVI). Do I need some kind of adapter, or is it specifically not on the 6670?