Dell Alienware M17x R3 (Early 2011) - Manual (Page 45)

CHAPTER 3: USING YOUR LAPTOP
43
Extending the Desktop
1. With the external display connected, right‑click on the desktop and select Personalize.
2. Select Connect to a projector or other external display in the upper left portion of the
screen.
3. Click Connect Display.
4. Select from the below options that appear on the screen:
• Duplicate my display on all displays (mirrored)
• Show different parts of my desktop on each display (extended)
• Show my desktop on the external display only
5. Click Apply to apply your changes and then click OK to exit the Display Settings control
panel.