[Gemma]

I've got to the stage in the game where i need to heat the potion but it just doesn't seem to be letting me. When i continue the game, the screen zooms into the cauldron for me to heat it, but then it zooms back out again to show me the instructions. I follow the instructions [move the remote and nunchuck up and down] but it just doesn't work at all. I was wondering if you could tell me what is suppose to happen or what i'm doing wrong?