quake on dual screen

Has anyone been able to run Quake or WOP on a dual screen set-up? It will install and load, but it kills the left monitor and runs 1/2 to 2/3 off the right edge of the right monitor. Is there a setting that needs changing? The other Quake engine game I have running fine is Paintball2. Strange.

64 bit
11.1
nvidia dual port video cards

idee