DSO firmware version 3.64

Just got my DSO Nano V1 yesterday, installed the BenF 4.62 firmware, and it works well however I have one problem, I cannot get any of my 6 SD cards to work! They vary from 2gb to 8gb, some HC some not, tried FAT16, FAT32, etc and none work. On some of them the nano boots up and works fine but doesn’t see the SD card itself, on a few of them it would just hang the device on boot. Also reguardless of what card I used when plugged into the computer it reported all of them as 34gb! Any ideas on what I can do to get an SD card to work?