Hey hi there,
I'm facing the same problem here.It's a Samsung EX1920X and the card is a Sapphire HD2600(borrowed from a friend till 15th Jan,my veteran xfx 7300GS fell during battle-I used the vga cable with this). This HD2600 comes with 2 DVI ports and the monitor came with a
DVI-D(I checked the pin pattern) cable.
Since this post is pretty old I hope you've already found a solution and would be grateful if you can share it with me.
Thanks in Advance!