I've had an R4 for a while and I love it. Everything has been working fine for months. Recently I put Pokemon Platinum on and that also works great. Then I tried to play Animal Crossing, which I have had for a while, not so great. After it loaded it just went to a white screen and stayed there. At first I didn't know what did it and I tried a bunch of different things. Finally I replaced the .nds file with a new one and the game worked again. I played Pokemon again then AC stopped working. Every other game works fine after Pokemon, why does AC stop? Any ideas? Thanks!