re: Problem with the WII

The sensor bar doesn't really do much. It just has little sets of lights on both ends. If you take a picture or video tape it, you should see 2 or 4 little blue dots emitting from the bar. If those are not there, then that's probably the problem.

Otherwise, I would think its a remote issue. However, if you have multiple remotes, I would find it weird if they all did not work at that point I would chat with Nintendo support to see what they say.