48Chapter 3.Using the computerUsing the Touch ScreenReplacing the pen tipIf the pen tip is damaged, you can replace the pen tip as follows:1 Hold the pen tip by inserting it into the hole of the ring andremove the tip by pulling it out.2 Insert the new pen tip into the S Pen.Take care so that the pen tip does not spring out when takingit out.Screen CalibrationWhen the pointer on the screen does not precisely match thepoints you touch, calibrate the touch screen using the Tablet PCSettings menu.The calibration process for the touch screen may differ dependingon the operating system and may not be available in someoperating systems. The following descriptions assume theWindows 8 operating system.1 Click Charms menu on the Desktop > SettingsáᔪŖᮁ᯲ᰆ⊹ᖅᱶ>Control Panel > Hardware and Sound > Tablet PCSettings > Calibrate.