Having specific problems with a couple roms on my m3 ds simply, they and their problems are as follows. Mario Kart DS: All working except download play, clean rom, not patched. Megaman Battle Network 5: Kills SD card, to be specific, the first time I put it on the card it played with no problems, played some other games and got SD/TF card error, had to reformat my card. Second time, it had been played several times with no problem, and then my card froze while creating a save file for another game, so I powered my DS down, the system then booted to DS menu saying (there is no card inserted in slot 1). Any ideas for either of these?