What you should probably do is: turn everything off and take the batteries out of the Wiimote. Then place the sensor bar wherever you like it, top, or bottom of tv. Then sync the Wiimote and Wii. Then go to the settings and set wether the sensor bar is on top or bottom, and if all else fails, try takinging it all apart like when you first got it (power cord, av jacks, batteries, etc.) wait a few minutes, then plug everything back up, and re-sync and you should be fine, if not then I would contact NOA, but if they don't help (which they most likely will)
then go to buy another Wiimote. I know you're probably thinking it's your system, and if it is then you are going to get another, and when you do you will probably eventually get another Wiimote, so I hope that helps and have fun Wiiing!
