56 Solving Problems
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No sound from headphones
RUN THE SPEAKER  DIAGNOSTICS — Some speaker systems have self- 
diagnostics. See the speaker documentation for diagnostics instructions.
REINSTALL THE AUDIO (SOUND) DRIVER — See page 65.
CHECK FOR INTERRUPT REQUEST CONFLICTS — See page 70.
CHECK THE HEADPHONE CABLE  CONNECTION — If your computer has a 
front-panel headphone connector, ensure that the headphone cable is securely 
inserted into that connector (see page 76).
ADJUST THE WINDOWS VOLUME CONTROL — Click or double-click the 
speaker icon in the lower-right corner of your screen. Ensure that the volume is 
turned up and that the sound is not muted.
DISABLE DIGITAL MODE — Your headphones do not work if the CD drive is 
operating in digital mode. To disable digital mode:
1 Click the Start button, click Control Panel, and then click Sounds, Speech, 
and Audio Devices.
2 Click Sounds and Audio Devices.
3 Click the Hardware tab.
4 Double-click the name of your CD drive.
5 Click the Properties tab.
6 Uncheck the Enable digital CD audio for this CD-ROM device box.