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. You have not used the battery pack for an extended period of time. When should I replace the battery pack? If the battery pack quickly runs out of power after being fully charged, it may be reaching the end of its life and should be replaced. Troubleshooting > Battery n112 N Should I be concerned that the installed battery pack is warm? No, it is normal for the battery pack to be warm while it is powering your computer. Can my computer enter Hibernate mode while running on battery power? Your computer can enter Hibernate mode while running on battery power, but some software programs and peripheral devices prevent the system from entering Hibernate mode. If you are using a program that prevents the system from entering Hibernate mode, save your data frequently to avoid losing data. See Using Hibernate Mode (page 27) for information on how you can manually activate Hibernate mode. Troubleshooting > Built-in Camera n113 N Built-in Camera Why does the viewfinder show no images or poor-quality images? . The built-in camera cannot be shared by more than one software application. Exit the current application before launching another. . The viewfinder may show some noise, for example horizontal streaks, when you are viewing a rapid-moving object. This is normal and does not indicate a malfunction. . If the problem persists, restart your computer. Why are captured images poor in quality? . The images captured under the fluorescent light may show reflections of light. . A dark portion in captured images may appear as a noise. . If the lens protection cover is dirty, you cannot take a clear shot. Clean the cover. See Built-in Camera (page 90). What should I do if captured images flicker? This problem occurs when you use the camera under fluorescent lights due to a mismatch between the lighting output frequency and the shutter speed. To reduce flicker noise, change the direction of the camera or the brightness of camera images. In some software applications, you can set an appropriate value to one of the camera properties (e.g. light source, flicker, etc.) to eliminate flicker noise. Troubleshooting > Built-in Camera n114 N Why is the video input from the built-in camera suspended for a few seconds? The video input may be suspended for a few seconds if: . a shortcut key with the Fn key is used. . the CPU load increases. This is normal and does not indicate a malfunction. What should I do if my computer becomes unstable when it enters a power saving mode while the built-in camera is in use? If your computer automatically enters Sleep or Hibernate mode, change the corresponding power saving mode setting. To change the setting, see Using the Power Saving Modes (page 26). Troubleshooting > Networking n115 N Networking What should I do if my computer cannot connect to a wireless LAN access point? . Connection capability is affected by distance and obstructions. You may need to move your computer away from obstructions or closer to any access point you may be using. . Make sure the WIRELESS switch is on and the WIRELESS indicator light is lit on your computer. . Make sure power to the access point is on. . Follow these steps to check the settings: 1 Click Start and Control Panel. 2 Click View network status and tasks under Network and Internet. 3 Click Connect to a network to confirm that your access point is selected. . Make sure the encryption key is correct. . Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting any other option may result in a communication failure. To change the settings, follow these steps: 1 Right-click the power status icon on the taskbar and select Power Options. 2 Click Change plan settings. 3 Click Change advanced power settings. 4 Select the Advanced settings tab. 5 Double-click Wireless Adapter Settings and Power Saving Mode. 6 Select Maximum Performance from the drop-down list both for On battery and Plugged in. Troubleshooting > Networking n116 N What should I do if I cannot access the Internet? . Check the access point settings. See the manual that came with your access point for more information. . Make sure your computer and the access point are connected to one another. . Move your computer away from obstacles or closer to any access point you may be using. . Make sure your computer is properly configured for Internet access. . Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting any other option may result in a communication failure. Follow the steps in What should I do if my computer cannot connect to a wireless LAN access point? (page 115) to change the settings. . If you use the network (LAN) port for an Internet connection, make sure the power setting for the network (LAN) port is set to Enable on the VAIO Power Management tab. For information on how to change the setting, see Using the VAIO Power Management (page 85). Why is the data transfer speed slow? . The wirele...
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