The “Auto Complete” or “Auto Text” feature on a BlackBerry was designed to help you send messages more quickly by completing your text for you from a database of stored phrases. This can be both useful and a hindrance if it automatically changes your original word to something else, or adds punctuation where you didn’t intend it. Fortunately, you have the option to enable or disable the auto complete feature.
Scroll to the “Options” icon and press the trackball.
Select “SMS Text” and press the trackball.
Select “Yes” next to “Disable AutoText” and press the trackball.
Press the “Menu” key on the BlackBerry’s keypad. Select “Save,” then press the trackball to apply the setting.