Installation guide
32 Matrox Graphics Card – Installation Guide
7 For the Master, Line and/or Wave controls, make sure the Volume sliders are at
one-quarter to one-half levels (if you’re not sure, try half level), and the
Mute
check boxes are cleared.
8 Close the dialog box.
Cause The problem may be specific to the sound card you have.
Solution For more information, see your sound card manual.