I posted this question on the cheats forum under Professor Layton and the Diabolical Box, but then I figured it might be more appropriate here. I used r4cce to update the latest usrcheat.dat. I added the new Professor Layton game and the 2 codes that are listed in the cheat forum. I use this file on my TTDS in my DS Lite and it works just fine. When I use it on my son's Acekard 2i on his DSi, the cheats don't work. They show up and I can select them, but they don't appear to be working in the game. I've tried several other games and their cheats and they work fine. Anyone know what I might have done wrong when I added the game and the codes to the usrcheat.dat?