I had no problem loading the game on my R4 card but when I tried to put the game on my mom's R4 card on her DS Lite, it simply will not load. I've tried switching my R4 card with hers to see if it was the card's problem, but it still won't work. I've tried installing the latest firmware, nothing works! But it will work on my machine and my memory card, and it seems to only be a problem with Rittai Picross as I have put other games on her card and they all work fine. . Can someone please help? Thanks!