Operating Your Computer 2-15Using the Active Digitizer Feature (Optional)NOTE:z This function is not available if your computer comes with the touchscreen function.z Make sure the digitizer driver has been installed properly (see chapter 6 for details).CAUTION: Do not use a sharp object such as a ballpoint pen or pencil on the LCDdisplay. Doing so may damage the display surface. Use your finger or the includeddigitizer pen (option).The active digitizer feature allows you to easily use the computer withouta mouse, keyboard, or touchpad to communicate with the computer byusing the optional digitizer pen.When using the digitizer pen, be sure to install the included size “AAAA”battery.