Rico,
This is so strange. I have exactly the same problem but with a MK1. At least I now have good indication why it's not showing on the menu. I will also upgrade to MK4 but try to do in stages so I will see how/if it works with a 4:3 screen. I don't know how it will look: ok, squished 16:9, chopped-16:9, letter-box, or who knows what...