I decided to dig out my old M3 Real card so my girlfriend could use it on her DS Lite, and I'm having an unusual problem. I downloaded the M3 Sakura firmware from here, put it in the micro sd card (SYSTEM in the root folder), and created a folder called NDS for the DS roms, but whenever I turn on the DS, it claims that there aren't any system files... I even tried downloading the firmware off the oficial website, with no luck. It's a European card, and when I used to use it about a year ago it worked perfectly without a hitch. Any idea what I'm doing wrong?