Select Menu > Settings and Phone > Touch input.
To modify text input settings for the touch screen, select from the following:
Handwriting training - Open the handwriting training application. Train the device to recognise your handwriting better. This option is not available in all languages.
Writing language - Define which language-specific characters in your handwriting are recognised and how the virtual keyboard is laid out.
Writing speed - Select the writing speed.
Guiding line - Display or hide the guiding line in the writing area. The guiding line helps you write in a straight line, and it also helps the device recognise your writing.
Pen trail width - Select the pen trail width for the text written with the stylus.
Writing colour - Select the colour of the text written with the stylus.
Adaptive search - Activate adaptive search.
Touch screen calibration - Calibrate the touch screen.