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To prevent this problem: . Keep the microphone away from a sound output device. . Turn down the volume of the speakers and the microphone. 124nNTroubleshooting Mouse What should I do if my computer does not recognize my mouse? Make sure your mouse is securely plugged into the port. What should I do if the pointer does not move when I use my mouse? . Make sure another mouse is not connected. . If the pointer does not move while a software application is running, press the Alt+F4 keys to close the application window. . If the Alt+F4 keys do not work, press the Windows key once and then the , key several times, select Restart with the M or m key, and press the Enter key to restart your computer. . If your computer does not restart, press the Ctrl+Alt+Delete keys, select the arrow next to the Shut down button with the m and , keys and then Restart with the M or m key, and press the Enter key to restart your computer. . If this procedure does not work, press and hold the power button until the computer turns off. ! Turning off your computer with the power button may cause loss of unsaved data. 125nNTroubleshooting Speakers What should I do if my external speakers do not work? . 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. . Make sure your speakers are properly connected and the volume is turned up loud enough to hear sound. . Make sure your speakers are designed for computer use. . If your speakers have a muting button, set the button to off. . The volume may have been turned off by the muting button on the keyboard. Press the button once again. . The volume may have been minimized by the volume down button on the keyboard. Press the volume up button several times or keep pressing the button to turn up the volume loud enough to hear sound. . If your speakers require external power, make sure the speakers are connected to a power source. See the manual that came with your speakers for more information. . Check the Windows volume controls by clicking the volume icon on the taskbar. . Your sound output device may have been incorrectly configured. To configure the sound output device, see How do I change the sound output device? (page 130). 126nNTroubleshooting 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 muting button on the keyboard. Press the button once again. . The volume may have been minimized by the volume down button on the keyboard. Press the volume up button several times or keep pressing the button to turn up the volume loud enough to hear sound. . Check the Windows volume controls by clicking the volume icon on the taskbar. . Your sound output device may have been incorrectly configured. To change the sound output device, see How do I change the sound output device? (page 130). 127nNTroubleshooting Keyboard What should I do if the keyboard configuration is wrong? The language layout of the keyboard is labeled on the packaging box. If you choose a different regional keyboard when you complete the Windows setup, the key configuration will be mismatched. To change the keyboard configuration, follow these steps: 1 Click Start and Control Panel. 2 Click Clock, Language, and Region, and click Regional and Language Options. 3 Change the settings as desired. What should I do if I cannot enter certain characters with the keyboard? If you cannot use the numeric keypad, the Num Lk key may not be activated. Check if the Num lock indicator light is unlit. If the Num lock indicator is unlit, press the Num Lk key to turn it on before entering numerals. What should I do if my computer does not recognize my keyboard? Make sure your keyboard is securely plugged into the port. 128nNTroubleshooting Floppy Disks Why doesn't the Safely Remove Hardware icon appear on the taskbar when the drive is connected? Your computer does not recognize the floppy disk drive. First, make sure the USB cable is properly connected to the USB port. If you need to secure the connection, wait a few moments for the computer to recognize the drive. If the icon still does not appear, follow these steps: 1 Close all programs that are accessing the floppy disk drive. 2 Wait for the indicator light on the floppy disk drive to turn off. 3 Push the eject button to remove the disk, and disconnect the USB floppy disk drive from your computer. 4 Reconnect the floppy disk drive by plugging the USB cable into the USB port. 5 Restart the computer by clicking Start, the arrow next to the Lock button, and Restart. What should I do if I cannot write data to a floppy disk? . Make sure the floppy disk is properly inserted in the drive. . If the disk is inserted properly and you are still unable to write data to it, the disk may be fu...
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