My card has always worked perfectly until recently. Though recently a game locked up, and after a switch off and on Sims 2 wouldn't boot, freezing on an intro picture. Also Yoshi's Island is the same, freezing at the intro movie after you start a new game. It always freezes at exactly the same point. I've never been up with all the system versions and the like though i've tried the latest system version I can find. What is the latest? I've also formatted the card using the option when booting up the DS, i've also sourced the games again to rule those out. So to clarify, i've tried different system versions, different roms, formatting the card, and with the system folder removed just using the mini-loader. all of which give the same results. Please help i'm pulling my hair out here! any ideas??