I have a 2008 Dual Quadcore 2.8 Mac Pro with the ATI Radeon HD 2600 video card installed that I use in a Pro Tools setup. I just bought a 25" LCD monitor with a 1920 x 1080 resolution. I want to run a 2nd setup to a 21" 1600 x 1200 monitor in the vocal booth with the same view. Is this possible? So far, the main display defaults to the resolution of the smaller display.