If your smartboard is not calibrated properly, even after manual calibration, check to be sure your display resolution is correct

 *please note these instructions may vary slightly depending on what version of Windows you are using  

  1.   Right click on desktop >  Select Display settings
  2.   Select Advanced display settings
  3.   Click the drop down arrow next to Resolution
  4.   Select whatever the (Recommended) resolution is
  5.    Click Apply