I'm currently trying to connect 3 monitors to my 7970 card. From monitor to PC, the cables I have connected are HDMI-Mini-DP, DVI-HDMI, and a DVI-DVI cable. I have it all plugged in but only 2 monitors are working. When I go to screen resolution to modify my settings, when I select "extend desktop to my display" it says, "unable to save display settings." If anyone could help that'd be great