OK I have a M3 DS Simply. I got this because it seemed like the most simple way to go for DS games. My problem is that games crash ALL the time. I will be playing and then the DS just turns off. My card is formatted as FAT. I upgraded to v1.03 and I still have this problem. I am using a Kingston 1 GB card. It is the Taiwan version. I have turned soft reset off and on and it still crashes. Is there something else I can do? Is it the card? Should I re-format the card? Some games are fine, and other are only playable for 2-3 mins. I am at my wits end. Should I get a different slot 1 card or should this be working???? Please help if you have any info.