A verified Kali ISO has been dd'd onto a 16GB USB. Holding down the options key on my mac whilst booting, and choosing EFI, I have had the following problems in this order:
Kali loads from
Live (amd64)but the Kali boot menu is small and half obscured in the top left corner
Kali does not offer a boot menu anymore
What is wrong with my usb drive, and how do I fix it?