Hi All I have a 52inch TV and have the sensor bar positioned about 7 centimeters under the screen and stand about 3 meters away. I can't seem to get a proper calibration with the gun on either Ghost Squad or House of the dead: Overkill If I sight it up down the barrel and shoot the calibration targets the cursor is well off and make it impossible to play with. The games are playable without calibration using the on screen sight but I would like to play without the sight on and just aim using the barrel of the gun. I think though the problem may be down to the size of the TV Vs The size of the sensor bar. Does anyone have tips or things I could try? Is it something obvious I'm missing??