I connected a larger monitor to an unused monitor port on the back of my PC, but I can't get a picture on it. Am I taking the phrase "plug-and-play" too seriously?
Plug-and-play technology allows Windows to recognize newly attached devices and install drivers for them automatically. Sometimes this is sufficient; other times, you need to help things along. If you plug in a USB microphone, for instance, Windows will change your sound settings immediately so the new microphone works, but monitors do not enjoy the same privileged service. Here's how to get it to work.
If you're using a laptop, there's probably a key on your keyboard (CTRL/LCD ) that switches between the built-in LCD screen and any external monitor that might be attached. Press this key (typically while holding the Fn key) repeatedly until the video shows up where you want it.
Don't have a monitor key? Want more control? Right-click an empty area of the desktop, select Properties, and choose the Settings tab. If Windows has detected both monitors (as well as both video cards, if applicable), they'll show up here as numbered rectangles. If you're not sure which monitor is which, click the Identify button, and an enormous number "1" will appear on the primary monitor.
To use both monitors simultaneously side by side, creating one huge desktop, click the #2 rectangle and place a checkmark by the "Extend my Windows desktop onto this monitor" box.
If you only want to use the second monitor (and turn off the first one), click the #2 rectangle and then place a checkmark next to the "Use this device as the primary monitor" option. When the numbers switch, click the new #2 rectangle, and remove the checkmark next to the "Extend my Windows desktop onto this monitor" option.
If you still have problems, click the Advanced button, choose the Monitor tab, and click the Properties button to verify that the correct drivers are installed for each of your monitors. Then do the same (via the Adapter tab) for your video card(s).
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