I have a PAL Wii, and I wondered what were to happen if I, by accident, would put an NTSC update on my Wii (For example my Wii is an older one so if I were to update it with update from an NTSC version of Mario Kart Wii). Would it be fine or would it completely !@#$% up my Wii (it hasn't happened yet, but better to be safe than sorry).