I can't hear the sound when I start some activities.

1. Check that your speakers are turned on and are plugged into the computer.
2. Check that the volume in Windows is turned up and not muted. This can be done by clicking on the small yellow speaker icon in the bottom right corner of your screen. A volume slide bar will appear when you click on the icon. Move the slide bar up near the top. Make sure that the box next to 'Mute' is blank.
   
   NOTE: Some versions of Windows do not have the yellow speaker icon.
   
   
3. Make sure that no other program is playing sound while you are playing the activities. Usually only one program can play sound at a time. If your computer is playing music or sound from another program, the activities may not have any sound.
4. Check that your soundcard is connected correctly. One way to check this is to run another program or game that plays sound. If you can hear the sound in another program, then your soundcard is probably connected correctly. If other programs or games do not play sound when they are supposed to, there may be a problem with the way your soundcard is connected. Contact the support team for your soundcard. They may be able to help you with any connection problems.