Solving Problems 49No sound from headphonesT E 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 itwith another device, such as a lamp.E N 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 analogmode. To enable 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 Check the Enable digital CD audio for this CD-ROM device box.E L 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, orhalogen lamps to check for interference.R U N T H E S P E A K E R D I A G N O S T I C S — Some speaker systems have self- diagnostics. See thespeaker documentation for diagnostics instructions.R E I N S T A L L T H E A U D I O ( S O U N D ) D R I V E R — See page 60.C H E C K F O R I N T E R R U P T R E Q U E S T C O N F L I C T S — See page 63.C H 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 issecurely inserted into the headphone connector (see page 68).A D J U S T T H E W I 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 thelower-right corner of your screen. Ensure that the volume is turned up and that the sound is notmuted.