I was able to load my first NDS ROM onto my M3 Lite today and was horrified to find out that after playing Castlevania: DoS for an hour, then switching to Tetris, that my DoS file was gone. I also tried to load up minnish cap, but it tells me off the bat that saves 1, 2 and 3 are corrupt and fails when I try to make new ones. Now, I've done some experimentation with DoS. I played it for a bit, saved, then turned the DS off, came back to it an hour later and my save WAS indeed there, and this worked a few times, but every time I try to load anything else, be it rom or homebrew, it erases my files. I've reformatted my card to FAT, and am currently getting the new FW. Anything else I need to do here? I just got the thing, so I doubt that its the battery. Also, I get This message every time I boot up... Zelda: Minish Cap WARNING! gba Game save in cart, but cannot find "Gamesave" directory, press a to continue Castlevania DOS: WARNING: NDS GAME SAVE in card but CANNOT find AUTOSAVE backup file. Backup fail! Press A to continue\. The GBA one is kinda obvious, but the NDS one is pissing me off.