Every now and then (and it happens quite often while I'm playing) my Wii-Mote will stop working. For instance, I'll be playing Zelda and my fairy will slowly drift up to one of the corners without me moving the wii-mote. the screen will then say its lost connection with the wii-mote and then the power on the wii-mote goes off. so i turn it back on and it A-OK until about 2 minutes later itll do it again. I've tried changing the batteries and unplugging everything, and even reconnecting the wii-remote. Should I just get a new one?