We got brand new Cyclo DS carts today. I did all the right stuff, put the new firmware (1.53) on it, and the games. First I formatted the card (which was working fine with the R4). Now before the game menu even loads it has a white screen. It was working earlier but now it won't work. I tried it with another Cyclo cart and it didn't work with it either. I can't imagine that it's the sd card since it was perfect before this. Any ideas? Should I switch it to 1.51 firmware? If so where do I find that? thanks! eta: I did have a custom skin on it but I took that off and it didn't do any good. I have the cheat file on it too. My son's is working fine so far, just my daughter's is not.