Nope, can't be done. An adapter won't add extra info into the signal that weren't there in the first place.
Okay. Thanks Kari. I'll look to replace my video card then. How does one choose a new dual link video card? I do not game but like super high resolution and clear graphics. I'm looking at CNET and see this one at a reasonable price http://www.cnet.com/graphics-cards/nvidia-quadro-fx-1700/4505-8902_7-32685682.html
Or this one http://www.bhphotovideo.com/c/product/845930-REG/Diamond_6570PE32G_AMD_Radeon_HD_6570.html
I'm thinking this will suffice. Correct?