Blackberry Curve 8330 - Manual (Page 100)

4. Roll the trackball left or right.
Cancel a text selection
1. With text selected, click the trackball.
2. Click Cancel Selection.
Set the cursor speed
1. In the device options, click Screen/Keyboard.
2. Set the Key Rate field.
3. Press the Menu key.
4. Click Save.
Turn on key tones
1. In the device options, click Screen/Keyboard.
2. Set the Key Tone field to On.
3. Press the Menu key.
4. Click Save.
Set the trackball sensitivity
You can set how the trackball responds to your touch. A high sensitivity level requires less pressure than a lower sensitivity level.
1. In the device options, click Screen/Keyboard.
2. Set the Horizontal Sensitivity and Vertical Sensitivity fields.
3. Press the Menu key.
4. Click Save.
Turn off trackball sounds
1. In the device options, click Screen/Keyboard.
2. Set the Audible Roll field to Mute.
3. Press the Menu key.
4. Click Save.
To turn on trackball sounds again, set the Audible Roll field to Click.
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