How to setup dual monitors with Microsoft Vista

Step 3 What to do in Display Settings

Once you have done this you will see something like the image below. If you have a second video card installed on your computer then you will see two graphical representations of computer monitors. If you have more than two video cards then you will see a graphic corresponding with each video card you have installed. The monitor you are currently using is "1". We are wanting to turn on monitor "2". Click on the box with the 2 in it and you'll now be dealing exclusively with the second monitor. Once you've done this you'll see something similar to the window shown in the second image.