Games only play on 2 monitors not 3

[CheechQ107]

Hello, im running two 570 gtx's with 1250 watt psu on 12v rail, 3x acer 24" monitors, asus motherboard, 8 gig triple channel mem and i7 @ 4.0mhz.
black ops 2 and medal of honor aRE BOTH set at 6080x1080 res but they will only work on two monitors. any ideas?

 

[simon12]

They should be set to 5760 x 1080. If you are running the cards in SLi they only support 2 monitors.