62 www.gateway.comChapter 6: TroubleshootingAudio CD does not produce sound■ Make sure that the disc label is facing up, then try again.■ Some music CDs have copy protection software. You may not be able to play theseCDs on your computer.■ Make sure that the volume controls are turned up. For more information, see“Adjusting the volume” on page 25.■ Make sure that the mute controls are turned off. For more information, see “Adjustingthe volume” on page 25.■ Make sure that the speaker cables are connected correctly and securely.■ Shut down and restart your computer.■ Clean the disc. For more information, see “Cleaning CDs or DVDs” on page 48.■ Reinstall the audio device drivers.A DVD movie will not play■ Make sure that you have a DVD drive. To identify your drive type, see “Identifyingdrive types” on page 37.■ Make sure that the disc label is facing up, then try again.■ Try a different disc. Occasionally discs are flawed or become scratched and cannot beread by the DVD drive.■ Shut down and restart your computer.■ Clean the disc. For more information, see “Cleaning CDs or DVDs” on page 48.■ Reinstall the device driver.■ Make sure that the DVD program has been installed on your computer.■ DVDs and DVD drives contain regional codes that help control DVD title exports andhelp reduce illegal disc distribution. To be able to play a DVD, the disc’s regional codeand your DVD drive’s regional code must match.The regional code on your DVD drive is determined by your computer’s deliveryaddress. The regional code for the United States and Canada is 1. The regional codefor Mexico is 4. Your DVD drive’s regional code must match the regional code for thedisc. The regional code for the disc is on the disc, disc documentation, or discpackaging.If the DVD movie does not play, the disc’s regional code and your DVD drive’s regionalcode may not match.
