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. BD-R Disc media are not rewritable. You cannot add or erase data to or from the BD-R Disc media. Troubleshooting > Optical Discs n177 N What should I do if my external optical disc drive does not work properly? Make sure that your external optical disc drive is connected to an AC power source and the USB port on your computer. If it is not connected, the external optical disc drive may not work properly. Troubleshooting > Display n178 N Display Why did my screen go blank? . Your computer screen may go blank if the computer loses power or enters a power saving mode (Sleep or Hibernate). If the computer is in LCD (Video) Sleep mode, press any key to bring the computer back into Normal mode. See Using the Power Saving Modes (page 27) for more information. . Make sure your computer is securely plugged into a power source and turned on and the power indicator light is lit. . If your computer is running on battery power, make sure the battery pack is installed properly and is charged. 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 33) for more information. Troubleshooting > Display n179 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. . Depending on your model, dropped frames may occur during Blu-ray Disc playback while the computer is running on battery power, because the refresh rate may automatically change to a lower rate for power conservation purposes. If this occurs, follow these steps to change the screen refresh rate: 1 Right-click on the desktop and select Screen resolution. 2 Click Advanced settings. 3 Click the Monitor tab. 4 Change the screen refresh rate under Screen refresh rate in the monitor settings. Troubleshooting > Display n180 N What should I do if no image is displayed on my TV screen or external display connected to the HDMI output port? Make sure you are using an HDCP-compliant display. The copyright protected content is not displayed on a non-HDCP compliant display. See Connecting a TV with an HDMI Input Port (page 98) or Connecting a Computer Display or a Projector (page 95) for more information. 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 100) 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 33) 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. Troubleshooting > Display n181 N What should I do if my screen is dark? . Press the Fn+F6 keys to brighten your computer screen. . Blocking the ambient light sensor turns your screen dark. Make sure that the sensor is unblocked. 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 33) for more information. How do I run Windows Aero? To run Windows Aero, follow these steps: 1 Right-click on the desktop and select Personalize. 2 Select your desired theme from Aero Themes. For information about the Windows Aero features, such as Windows Flip 3D, see Windows Help and Support. Troubleshooting > Printing n18...
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