To show the same information on both displays
Windows XP
Make sure you have securely connected the additional displays you want to use to your computer.
Verify that your displays are plugged in and turned on.
From the NVIDIA Control Panel navigation tree pane, under Display, click Set up multiple displays to open the page.
In step 1, select the Clone option.
In step 2, click the display pair list and select the pair of displays in the order that you want to use them. For example, for display pair A + B, you can choose the "A + B" option or the "B + A" option.
The desktop is duplicated on both displays.
Note: If any one of your displays isn't showing an image, make sure to repeat steps 1. and 2. If that doesn't work, restart your computer and repeat the above steps.
Windows Vista and later
Make sure you have securely connected the additional displays you want to use to your computer.
Verify that your displays are plugged in and turned on.
From the NVIDIA Control Panel navigation tree pane, under Display, click Set up multiple displays to open the page.
The box under Step 1 lists all the displays that are connected to your system, and shows to which GPU they are connected.
Check or clear the check boxes to select the displays that you want to use.
In non-SLI modes, you can select up to two displays per GPU.
In SLI mode with GeForce 8 series and later GPUs, you can select up to two displays connected to GPUs within the same SLI group. Under 4-way SLI mode, only GPUs that have two display connectors can be used to drive displays. Typically, display connectors lined up on the same slot position are connected to the same GPU.
Icons in the box under Step 2 appear, corresponding to the displays you selected.
Click Apply to active the new display configuration.
Right-click one of the display icons, then from the pop-up menu click Clone with, click the display that you want to be in the same Clone group, then click Apply.
The icon numbers corresponding to your displays appear in the same box icon.
Note: If you are using SLI technology, then full SLI acceleration will not be achieved on displays in clone mode.
Note: If any one of your displays isn't showing an image, make sure to repeat steps 1. and 2. If that doesn't work, restart your computer and repeat the above steps.