so I was playing a retail copy of a game and when i went back to the wii menu i get the "Systems files corrupted" message and i jsut reset. though i am still able to play backups of games and still have my save files on my wii o.o. So is there any problem with it and what caused this? O-o should i stop playing retail copies? i believe i have a wiikey v2 o.o thnx.