I am using Nvidia surround. GTX 590 comes with 3 DVI ports. If you disable SLI Nvidia control panel disables surround. I don't know why I just play here.
I can get very good FPS on 1980 x 1080 single monitor no problemo. I will try reduced rez but screen looked goofy before when I tried it was shifted left and overscanning.
Does your TH2g stretch the side views? At the extreme L&R my views are strethec way out...distorted.
SKUD