Make sure that your sound card drivers are installed, most likely you have a “on-board” sound card, try installing the drivers from the CD that came with your motherboard or downloading them form the manufacturer website.

To install/update your sound drivers (for Windows XP) right click on “MyComputer” -> Properties -> click the “Hardware” tab -> click the “Device Manager” button -> expand “Sound video and Game controllers”, right click on your Sound Card and click “Update Driver” and then use the Wizard.

Once you have your drivers installed but your speakers are still not working double click on the speaker icon (bottom right on your screen, next to your computer clock) - if any of the “Mute” boxes is checked, uncheck it.

Good luck