I have installed my viper gc extreme and installed 2.1 cobra bios. I put in a burnt copy of resident evil 4 (maxell dvd-r full size) and it played. Problem is i just went to turn it on and it doesn't play anymore. It will spin then stop/then the memory card GC screen comes up. It seems its fairly random when it loads and doesnt loads. I have checked my pot ohms and its 215. Anybody know whats up? Is it my media? By the way all original GC games work.