After playing WiiPlay, and leaving it for a while. All of the a sudden a black screen appeared saying my "system files are corrupt". Reseting it comes back to the wii menu, but within 3 seconds the message is back. And I cant do anything. Also note I have a wiikey installed. Lataly I have been backing up my GC games to an SD card with an adapter using Wiikeys Disc Backup tool. a) Could the Wiikey have damage some system files during a disc backup? b) Will the Wiikey affect my warranty if I were to send the console back to Nintendo?