Need help, have a wiinja deluxe chip, ugraded to update 4 in my wii, which has been working great up until a few days ago and now my back-ups are not working correctly. Put back up in and it's recognized by wii ok, loads up and starts playing then I just get black screen with message saying the game disc couild not be read? or an error has occured remove disc reboot etc? any ideas, games do not freeze in the same place so does this imply there's a problem with my chip? Originals cause no probs.