OK I've been playing Rayman Raving Rabbids for a while now and got to 58%.
I turned my wii off for a while and came back to it about 2 hours later, and everything was gone. When I went to "story mode" on the game, it acted as if I've never played before.
My 58% wasn't there.
But when I go to the wii save data from the menu, it has the save file in there. So what the heck? Why won't the game pick it up?