Using an External Monitor Simultaneously as an Extension of Your Computer Display
You can attach an external monitor or projector to your computer and use it as an extension of your display (known as "dual independent display" or "extended desktop" mode). This mode allows you to use both screens independently and drag objects from one screen to the other, effectively doubling the amount of viewable work space.
To use extended desktop mode, perform the steps in the following section that corresponds to the operating system your computer is using.
Microsoft® Windows® XP
1Connect the external monitor, TV, or projector to the computer.
2Click Start→Settings→Control Panel.
3Under Pick a category, click Appearance and Themes.
4Under Pick a task..., click the area you want to change, or under or pick a Control Panel icon, click
Display.
5In the Display Properties window, click the Settings tab.
NOTE: If you choose a resolution or color palette that is higher than the display supports, the settings adjust automatically to the closest supported values. For more information, see your operating system documentation.
6Click the monitor 2 icon, click the Extend my Windows desktop... check box, and then click Apply.
7Change Screen Area to the appropriate sizes for both displays and click Apply.
8If prompted to restart the computer, click Apply the new color setting without restarting and click
OK.
9If prompted, click OK to resize your desktop.
10If prompted, click Yes to keep the settings.
11Click OK to close the Display Properties window.
To disable dual independent display mode:
1Click the Settings tab in the Display Properties window.
2Click the monitor 2 icon, uncheck the Extend my Windows desktop onto this monitor option, and then click Apply.
If necessary, press <Fn><F8> to bring the screen image back to the computer display.
Windows Vista®
1Click the Windows Vista Start button, 
, and click Control Panel.
2Under Appearance and Personalization, click Adjust screen resolution.
Using the Display
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