I soft moded my Wii 4.3U using the LetterBomb method. Installed the homebrew channel fine and installed bootmii as an iso. After that I moved onto step three and tried to make a nand back up. Launching bootmii gave me a back screem so after a bit I restarted and tried again. Got a menu of four buttons, but was unable to interact with them. So I tried to alternative option. Installed XYZZY and ran it per instructions. It says that there is no card available to write when there is. ( Wii 4GB SanDisk) Should I be worried? How can I get my Nada back up besides the above options?