1. With the laptop turned off, turn on the projector, or second monitor.
2. Connect the second monitor cable from the projector, or second monitor to the laptop.
3. Make sure the projector, monitor is on and in the right mode to receive a computer signal.
4. Now turn on the laptop. The Laptop screen will be monitor 1 and the SVGA or DVI connectoron the laptop will be monitor 2 .
5. Now determine what graphics card you have.

Determine What Graphics Card You Have:

1. Right Click on the Windows desktop.
   
2. Select:
   Windows XP: Properties, then Settings Tab.
   Windows Vista: Personalize then Display Settings link.
   Windows 7: Screen Resolution.
   
3. Click the Advanced button or Advanced Settings link.
   
4. Click the Adapter tab to see the type of video card you have.
   
5. Follow the steps in Dual Monitor Setup for NVIDIA and ATI graphics cards.
   Follow the steps in Intel Graphics Monitor Setup for Intel Graphics cards.