Sony VGC-LS21N User Guide - Page 136
What should I do if I cannot play a CD or DVD properly on my computer?, Ctrl+Alt+Delete, Shut down
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n 136 N Troubleshooting What should I do if I cannot play a CD or DVD properly on my computer? ❑ Make sure the disc is inserted into the optical disc drive with the label side facing toward you. ❑ Make sure the necessary program(s) is installed according to the manufacturer's instructions. ❑ If a CD or DVD is dirty or damaged, your computer will stop responding. Follow these steps: 1 Press the Ctrl+Alt+Delete keys and click the arrow next to the Shut down button and Restart to restart the computer. 2 Remove the CD or DVD from the optical disc drive. 3 Check the disc for dirt or damage. If you need to clean the disc, see On Handling Discs (page 114) for instructions. ❑ If you are playing a CD or DVD and cannot hear sound, do any of the following: ❑ Right-click the volume icon on the taskbar and click Open Volume Mixer to check the settings. ❑ Check the volume setting in the audio mixer. ❑ If you are using external speakers, check the volume settings on the speakers and the connections between the speakers and your computer. ❑ Make sure the correct driver software is installed. Follow these steps: 1 Click Start and Control Panel. 2 Click System and Maintenance. 3 Click System. 4 Click Device Manager on the left pane. The Device Manager window appears with a listing of your computer's hardware devices. If an "X" or an exclamation point appears on the listed device, you may need to enable the device or reinstall the drivers. 5 Double-click the optical disc drive device to open a list of the optical disc drives of your computer.