My son has a DSI, and I have been trying for days to get games downloaded on his system. After putting the NDS file game on the micro sd and then placing it in the R4i card, the games start but, then freezes up after a few minutes into the game. I downloaded the kernel from the website given on the R4i box also. Can anyone help me, this is very frustrating and I know it doesn't have to be...... Any suggestions would be greatly appreciated. Thanks