I just bought a computer with a pre-installed Matrox G450 Millennium dual monitor display adapter. I hooked it up to a couple monitors, and it worked fine. I then hooked it up to the two monitors that I will be using on this computer. I could only get a display on one monitor. I made every futile attempt I could think of to fix it. The only thing that produces a display on the second monitor is if the screen area is set to 1600 by 600 pixels. If I change it to any other resolution, it's like I don't even have a second monitor. The mouse pointer won't move outside of the first monitor. Anyone seen this before?