Anyone have an LG TV with the magic wand remote?

I have an LG flat screen with one of those motion remote wands. No problems with it for the first year but now about a year and a half in I'm having trouble every once in a while with the TV not being responsive. It just stops responding to either of the remotes I have intermittently. Both the Cable box remote and the wand. You can't get anything to work for anywhere between 30 seconds to several minutes. Volume, on/off switch, controls on the wand. Nothing. And then it starts working again with no issues. And I know it's receiving the signal because there's a delayed response to the buttons I pushed. If I push the power button nothing happens but then 30 seconds later it will turn off.

Anybody have this problem too and know how to fix it??