Solving Problems 57No sound from headphonesEN S U R E T H A T T H E S U B W O O F E R A N D T H E S P E A K E R S A R E T U R N E D O N — See the setup diagramsupplied with the speakers. If your speakers have volume controls, adjust the volume, bass, or treble toeliminate distortion.AD J U S T T H E WI N D O W S V O L U M E C O N T R O L — Click or double-click the speaker icon in the lower-rightcorner of your screen. Ensure that the volume is turned up and that the sound is not muted.DI S C O N N E C T H E A D P H O N E S F R O M T H E H E A D P H O N E C O N N E C T O R — Sound from the speakers isautomatically disabled when headphones are connected to the computer’s headphone connector.VE R I F Y S P E A K E R C A B L I N G — Refer to the setup diagram supplied with the speakers.TE S T T H E E L E C T R I C A L O U T L E T — Ensure that the electrical outlet is working by testing it with anotherdevice, such as a lamp.EN A B L E D I G I T A L M O D E — Your speakers do not work if the CD drive is operating in analog 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 Check the Enable digital CD audio for this CD-ROM device box.EL I M I N A T E P O S S I B L E I N T E R F E R E N C E — Turn off nearby fans, fluorescent lights, or halogen lamps tocheck for interference.RE I N S T A L L T H E A U D I O D R I V E R — See "Reinstalling Drivers and Utilities" on page 61.RU N T H E DE L L DI A G N O S T I C S — For instructions, see page 43.CH E C K T H E H E A D P H O N E C A B L E C O N N E C T I O N — Ensure that the headphone cable is securely insertedinto the headphone connector.