Compaq Presario,Presario 1211 Supplementary Manual page 112

Click Options, then Properties
to view additional sound
control settings.
"Adjusting Brightness" section
in this guide.
Q. There is no sound coming from my Notebook. What's
wrong?
A. You can control the sound coming from your Notebook
speakers by double-clicking the Volume
taskbar. The Volume Control dialog box is displayed:
Make sure the Mute all box is not checked in the Volume
Control Balance panel.
Q. The DVD movie is too dim or too bright. What should I
do?
A. Adjust the brightness setting and the Advanced Display
properties.
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