I haven't played with the Wii-mote too much, as I usually use the GameCube controller, but I've not had any problem with it so far. But then mine came with a Wii jacket and strap, so it's pretty secure. If your system didn't come with a Wii jacket, you can get one free at Nintendo.com. The offer requires that you enter your system's serial number so that people who got Wii jackets with their systems don't pawn off an extra one.

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Anything good in life is either illegal, immoral, or fattening. - Murphy's Law