Do the games or applications you use not have any sound when you user them on your BlackBerry smart phone? This happens with any of the models, the Pearl, Curve, Bold, etc. Try changing this setting to fix this problem:

1. Press Menu > Options.

2. Select Advanced.

3. Select Applications.

4. Select the program that you wish to enable sound for.

5. Press the Menu button.

6. Select Edit Permissions.

7. Set Interactions to Allow.

Test it out now. Your game or application should now have sound enabled.