I have used the search and read the guide but I cannot get this to work. I used the original Acekard firmware and it worked fine for the longest time and now I want to use Akaio. So I format my Sandisk SDHC 8 gb and drag and drop Akaio 1.81 onto the SDHC. I drop the __aio folder and the .nds file. I load it and get system file missing. I have tried the same process 3 times. I have tried version 1.71 and they all have been downloaded from the posts off this website. I honestly don't know what else to try. I'm on a Mac if that helps at all. Also using a DS Lite.