Hey I need help guys! I have the USB micro SD reader that came with the R4 and the light is on when I plug it in to the computer as if it were working. But I can't get my computer to view the files on my Micro SD anymore. I usually go to My Computer and click on the Removable F disk to view my files on my micro SD, but that icon is gone now. My R4 still reads and plays the games I have. Does anyone know a good replacement USB micro SD reader? My computer doesn't have a SD slot.