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Troubleshooting and Maintenance
Troubleshooting Your Notebook
Reference Guide 67
If you hear loud, high-pitched feedback from the speakers
• In the Volume Control, try reducing the Master volume by selecting the speaker
icon in the taskbar.
• In Volume Control, select Options > Properties, then select the microphone
option for the playback settings. Also in Volume Control, make sure the
microphone is muted.
CD-ROM and DVD problems
If you can’t boot from a CD or DVD
• Make sure the CD or DVD is bootable, such as the QuickRestore System
Recovery CD included with your notebook.
• Make sure the CD-ROM/DVD drive is selected as the boot device. See the
“Basic Operation” chapter for directions.
• Restart the notebook: select Start > Turn Off Computer > Restart.
If a DVD plays erratically
• Dirt or smudges can cause a disc to skip. Clean the disc with a soft cloth. If the
disc is badly scratched, it will probably have to be replaced.
• If you are playing the DVD on battery power, try changing the power scheme.
If you get a Region Code error when playing a DVD movie
• DVDs can have regional codes embedded in the disc data. These codes
prevent DVD movies from being played outside the region of the world in which
they are sold. If you get a Region Code error, you are trying to play a DVD
intended for a different region.
If the notebook cannot read a CD or DVD
• For a single-sided CD or DVD, make sure the disc is placed in the drive with the
label facing up.
• Clean the disc.
• Wait 5 to 10 seconds after closing the tray to give the notebook time to recognize
the disc.