Please bear with me if this has been asked many times before (I haven't had time to read previous posts for an answer.)  My NUNCHUK controller seems a little weird.  While playing Zelda I get times when the analog won't work properly.  The character seems stuck going in one direction.  Normally I would think it has something to do with the controoler itself, however when I reset the game it works perfectly.  I had recently changed the batteries and things are going well so far, but I would like to know if this problem is a symptom of low battery life or should I look into a replacement NUNCHUK?.

Thanks