Yesterday, I was playing Animal Crossing Wild World and out of no where the game froze. I restarted the DSi and now when I try to load the cartridge from the DSI menu i get white screens. Ive tried formatting and reinstalling with the new 1.7.3 kernal and following this guide http://gbatemp.net/threads/retrogamefan-updates-releases.267243/ on 2 different Micro SD cards and i still get the same problem.