I have a msi 7950 twinfrozr, and i cant use the display ports. The monitor i am trying to connect is a dell u2711 which works fine on the dvi-d port, but i need that port for my secondary monitor. I use the mini dp to dp adaptor provided with the graphics card. I also tried connecting the second monitor through a mini dp- dvi adaptor which also did not work. In both instances, catalys control center shows an unknown monitor in the detect display menu. Also, windows shows a monitor on screen resolution menu dubbed Display device on :VGA. No display even when activated, also resolution choices are wrong(there is no 2560x1440 nor 1920x1080, although there is a 1600x1200).