Guess I should have mentioned that I tried modifying via the NVidia Control Panel as well = fail.
Yeah, I have tried varied cables as well. My card has the following slots: Display Port, HDMI, DVI-D, and DVI-I.
I have tried the following combos, HDMI/DVI-D, HDMI/Display Port, Dispaly Port/DVI-D, and DVI-D/DVI-D (both cables are DVI-D). I have swapped out the cables, and no matter what, my second display is always off.