Initial startup   
3.3 Touch screen calibration 
  SIMATIC IPC427C Bundles, SIMATIC HMI IPC477C Bundles 
16  Manual, 07/2009, A5E02280126-02 
2.  Calibrate the Touch Screen. 
3.  Click on "OSK on Windows Logon", if you want the Windows screen keyboard to be 
displayed when you logon. 
4.  Click "Finish".