Desperate help needed

[gametronics]

I am trying to inta a radeon xfx hd6850 to show on two monitors, read all the answers given in the forum but just can't get it work. It has two dvi ports and two hdmi and I can only work one dvi, the hdmi I didn't try

 

[Suiluj]

Have you installed GPU drivers? atleast in my setup only 1 of my 3 monitors post if I don't have the right drivers.