Adjusting the Sound System The OmniBook supports Sound Blaster Pro-compatible sound and the Microsoft Windows Sound System. To adjust the speaker volume 1. Click the speaker symbol in the taskbar. 2. Drag the volume control bar up or down to adjust the volume. –or– • Hold down Fn and press UP-ARROW or DOWN-ARROW as needed to gradually increase or decrease the volume. To temporarily silence the speaker output • Press Fn+F7 or click Mute in the Volume window (above). This silences the speaker without changing the volume setting. • This is a toggle setting. Repeat the action to restore the speaker output. 25