I've just got my R4, have copied the software files to it from the disc it came with (_system_, dat, & moonshell files). I've created a folder called "NDS Games" and dragged-and-dropped 2 .nds files from my PC into it. When I put the cart in the DS and click the left icon it shows the folder "NDS Games" but it is empty. Putting the micro SD back into my PC to double-check, the .nds files are on there. What am I doing wrong???