If any of you have a Robo 3D with an LCD controller or any other 3rd party controller with an SD card slot and use the SD card for more than 1 purpose, always remember to re-format the card to Fat32!!!! NTFS will not work!!! I am letting everyone know as I have run into this issue and one of my friends and I just spend a while troubleshooting before realizing our mistake. And I am not sure about you mac folks out there, but I am confident that most Mac OS file systems will not work. ALWAYS USE FAT32!!!