nView display modes enable you to view your desktop in one of several multi-display modes to make the best use of the displays (monitors) that are connected to your computer.
In Single mode, your desktop is displayed on a single monitor
In Clone mode, your desktop is duplicated on each display.
In extended mode, you have extra desktop space on the additional display, which you can configure independently. You can move your desktop items and distribute applications to this additional display.
This section lists the displays connected to your system, and shows to which GPUs they are connected. Use this section to select which displays 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.
This section operates in a similar manner to the Windows Display Settings page and includes additional functionality. It shows which displays are enabled and in what configuration (extended mode or clone mode), and for displays connected to a GPU operating in SLI mode it shows which display has full SLI acceleration for full-screen applications. This is also called the "SLI focus" display.
In this section, you can
Click and drag the icons to match your display position.
Right-click an icon and then click Identify to locate the corresponding display.
Right-click an icon and then click Make Primary to designate that display as the primary display.
The "primary" display is where your Windows taskbar, system logon message, and applications appear by default.
Switch from extended mode to clone mode by right-clicking one of the display icons, then from the pop-up menu click the display (or display group) that you want to be in the same Clone group.
Designate one of the Clone displays to be the Clone source by right-clicking the clone group, then from the pop-up menu click the display you want to be the source.
Switch from Clone mode to extended mode by right-clicking the display icon box and then clicking Extend.
If you cannot see your display listed, then clicking My display is not shown opens the Detect Missing Display dialog box.
Rigorous Display Detection: Detects older and non-detected displays.
Force Television Detection: You can force detection of your connected television if you could not see it in the display list.