Gateway Tower User Manual page 285

If you have a SCSI device in your system, check the cable connected to
the SCSI card. If the CD or DVD drive is the last drive on the cable (the
drive farthest from the card), make sure that the CD or DVD drive is
terminated. For more information about SCSI device configurations, see
the drive documentation or download the documentation from the
Gateway Web site.
Reinstall the device driver. For more information, see "Updating device
drivers" on page 213.
Audio CD does not produce sound
Make sure that the disc label is facing up or left, then try again.
Some music CDs have copy protection software. You may not be able to
play these CDs on your computer.
Make sure that the volume controls are turned up. For more information,
see "Adjusting the volume" on page 82.
Make sure that the mute controls are turned off. For more information,
see "Adjusting the volume" on page 82.
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 and DVDs" on
page 278.
Reinstall the audio device drivers. For more information, see "Reinstalling
device drivers" on page 211.
A DVD movie will not play
Make sure that you have a DVD drive. To identify your drive type, see
"Identifying drive types" on page 94.
Make sure that the disc label is facing up or left, then try again.
Try a different disc. Occasionally discs are flawed or become scratched and
cannot be read by the DVD drive.
Shut down and restart your computer.
Clean the disc. For more information, or more information, see "Cleaning
CDs and DVDs" on page 278.
Reinstall the DVD player program. For more information, see "Reinstalling
programs" on page 214.
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