I seem to be getting some games with the "Save Data File Format Error" message with some games I want play so I decided to format my SDHC 4gb card. This is where it gets messy. I can't find the original package containing the system fold and F_Core.dat files now and I tried downloaded the newest installer for the firmware in Windows 7 but W7 doesn't seem to read the newly formatted SD card(which I formatted through FAT, not choices for FAT32). So I tried to format the SD card with W7 but it only partitions 200mb free which doesn't make sense! The card was fine before because when I first got my DSi and M3i Zero, it was when I was using Windows XP on my IBM Thinkpad and had a iMAC G5 where now I am using W7 on the Thinkpad and my Mac is now a Macbook(intel). Is there a solution for this mess now? I tried to use current system file folder with the F_core.dat and tried to flash it attached to my macbook(since it would recognize the entire SD Card) but it just light up red(no blinking) so I dunno if it requires flashing or not. Help please and thanks in advanced guys! Added: Took out my SD card to see what the DSi would see in the menu, it's still the Danny Phantom icon which if I just put a new System Folder in, it should be fine then? Problem is that it sorta just stops when the M3 is loading up bottom screen.