there is an option to say whether your sensor bar is at the top of the tv or at the bottom. make sure to have that set according to your setup. also, make sure there are no lights near the sensor bar because they can mess up its sensing ability. finally, make sure your bar is at the edge of whatever it is sitting on, as in if it is on the tv put it at the edge of the top of the tv as far as you can so that all of the bar is exposed. hope that helps.