okay, i got my wii about a week ago and i noticed that it freezed twice, it freezes not during game play but while browsing menus i mean on a menu switch it would freeze on a black screen it has only frozen twice and all i had to do was restart the wii but im worried if this may lead to a problem i have left my wii on for a full 12-16 hours straight and i do leave it on overnight could that be a problem?