I just spent the night configuring my LinuxMint 14 to have both nVidia graphics cards running and all three monitors simultaneously through the nvidia-settings panel and rewriting my xorg.conf file. That said, I am now having some issues with how things are playing out. For one my two main monitors (both plugged into a GTX 460) are streched so that when i fullscreen a program it streches across both monitors, as well as the panel being streched across both monitors as well. The 3rd monitor is on a seperate card (a 8800gt) and seems to be working with no issues.
Now I have the two main monitors on twin view, but only because when i switch to 'Seperate X Screen' and log in and out, my mouse gets locked in the "3rd" monitor and someines the "2nd" monitor just turns off and creates a real disaster.
My question is, how can I have it so each monitor is its own seperate entity and i can fullscreen on each monitor while only having the panel and such be on my primary display?
As a side note, my panel and gnome shell it seems has reverted to what looks like a messed up version of XFCE for some reason. I'm assuming xinorama is responsible for this. Is there a solution to restore it back to its former glory or am I out of luck? Also if gnome3 is out of the question can I throw KDE on and have that work?