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See Using the Battery Pack (page 19) for more information. . If the display output is directed to the external display, press the Fn+F7 keys. See Combinations and Functions with the Fn Key (page 32) for more information. Troubleshooting > Display n127 N What should I do if I do not see proper images or videos? . Be sure to select True Color (32 bit) for the display colors before using video/image software or starting DVD playback. Selecting any other option may prevent such software from displaying images successfully. To change the display colors, follow these steps: 1 Right-click on the desktop and select Screen resolution. 2 Click Advanced settings. 3 Click the Monitor tab. 4 Select True Color (32 bit) under Colors. . Do not change the display resolution or colors while using video/image software or playing DVDs, as it may cause unsuccessful playback/display or unstable system operations. Additionally, it is recommended you disable your screen saver before starting DVD playback. If the screen saver is enabled, it may be activated during DVD playback and prevent the playback from running successfully. Some screen savers have been found to even change the display resolution and colors. Troubleshooting > Display n128 N Why doesn't my screen display a video? . If the display output is directed to the external display and the external display is disconnected, you cannot display a video on your computer screen. Stop video playback, change the display output to the computer screen, and then restart video playback. See Selecting Display Modes (page 70) for changing the display output. Alternatively, you can press the Fn+F7 keys to change the display output. See Combinations and Functions with the Fn Key (page 32) for more information. . The video memory of your computer may be insufficient for displaying high resolution videos. In such a case, lower the resolution of the LCD screen. To change the screen resolution, follow these steps: 1 Right-click on the desktop and select Screen resolution. 2 Click the drop-down list next to Resolution. 3 Move the slider up to increase or down to decrease the screen resolution. . You can check the total amount of the graphics and video memory available. Right-click on the desktop, select Screen resolution, and click Advanced Settings and the Adapter tab. The displayed value may be different from the actual amount of memory on your computer. What should I do if my screen is dark? Press the Fn+F6 keys to brighten your computer screen. What should I do if the external display remains blank? Press the Fn+F7 keys to change the display output. See Combinations and Functions with the Fn Key (page 32) for more information. Troubleshooting > Printing n129 N Printing What should I do if I cannot print a document? . Make sure your printer is on, and the printer cable is securely connected to the ports on the printer and your computer. . Make sure your printer is compatible with the Windows operating system installed on your computer. . You may need to install the printer driver software before you use your printer. See the manual that came with your printer for more information. . If your printer is not functioning after your computer resumes from a power saving mode (Sleep or Hibernate), then restart the computer. . If the bidirectional communication functions are provided with your printer, disabling the functions on your computer may enable printing. Follow these steps: 1 Click Start and Devices and Printers. 2 Right-click the printer icon and select Properties. 3 Click the Ports tab. 4 Click to cancel the Enable bidirectional support check box. 5 Click OK. This disables the bidirectional communication functions of the printer, such as data transfer, status monitoring, and remote panel. Troubleshooting > Microphone n130 N Microphone What should I do if my microphone does not work? . If you are using an external microphone, make sure the microphone is turned on and is properly plugged into the microphone jack on your computer. . Your sound input device may have been incorrectly configured. To configure the sound input device, follow these steps: 1 Close all open programs. 2 Click Start and Control Panel. 3 Click Hardware and Sound. 4 Click Manage audio devices under Sound. 5 On the Recording tab, select your desired device for sound input and click Set Default. How can I prevent microphone feedback? Microphone feedback occurs when the microphone receives the sound from a sound output device, such as a speaker. To prevent this problem: . Keep the microphone away from a sound output device. . Turn down the volume of the speakers and the microphone. Troubleshooting > Speakers n131 N Speakers What should I do if I do not hear sound from the built-in speakers? . If you are using a program that has its own volume control, make sure the volume control is properly set. See the program's help file for more information. . The volume may have been turned off by the Fn+F2 keys. Press them once aga...
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