Answer by  
                                                                                          blombardy (82)
                                                            
                          
                          
                                                          Depending on your OS, you may be able to configure this from Control panel. Go to My Computer->Control Panel->Mouse. Under Pointer Options, set Visibility to 'show location of pointer when I press the CTRL key', then apply. When the cursor is next lost, use the CTRL key to home in on it's position.