Hi, I've got a quick question about the Dell U2711 monitor - we want to run two of them at the full resolution of 2560x1440 and I've been finding conflicting information about the cable that is needed to run at this resolution. Everywhere I've looked said that you need to use a dual link DVI cable, but does it matter if the video card port is dual link DVI-I or dual link DVI-D? Will both of those port types work for full resolution or only one of them?