Mine worked fine, im suprised i didnt get this problem, i normally do get all the problems that can happen with a console/related to a console.
I signed up my wii, then wii sports, then zelda: TP!
If it was just the one person i would say "maybe your wiisports has been preowned?" but alot of people are having the problem, and ill take my chances that all of you dont have a preowned wii sports hahaha!
Thats a tough one!