said by plk:many list the max resolution as 2560x**** I want 3840x**** resolution.
I was one desktop across both monitors.
That limit usually applies to a single monitor, but pretty much all cards in the last couple of years have 2 or more outputs. I'm not particularly familiar with NVIDIA cards, but a good portion of ATI/AMD based cards can usually handle at least 3, but sometimes 4 or more displays. NVIDIA cards shouldn't be far behind. More info on ATI/AMD cards can be found in the "video cards with 4 outputs" thread, still on the 1st page.