AES4ALL - Self booting standalone version of Andro Dunos?

Hi there, I appreciate that creating a self-booting, standalone game should be possible using AES4ALL, but I can't seem to get it working...

I'm trying to create a standalone version of Andro Dunos. I have successfully created an .aes file of the game using the neoconv tool, and tested it on the windows version of the emulator.

I have also created a self booting disk that seems to work - almost. Everything is fine, my splash screen is displayed, but then that vanishes and the screen goes black. Andro Dunos is not loaded.

My disc contains:
1st_read.bin
androdun.aes
config.cfg
IP.BIN
splash.bmp

aes file was created as a US region file, and my config file is as follows:

# Region: JAP / EUR / USA (default)
region=usa
# Sound: OFF / ON (default)
sound=on
# Accurate (synchonized CPUs): ON / OFF (default)
accurate=off
# CDDA: OFF / ON (default)
cdda=off
# Frameskip: 0..9 or auto (default)
frameSkip=0
# M68K CPU clock, default=12000000 (12 MHz).
m68k=12000000
# Z80 CPU clock, default=4000000 (4 MHz).
z80=4000000

I'm using aes4all-beta2-fix, and the files from the dreamcast/standalone folder.

Obviously something simple has gone wrong, as the disc loads, displays the splash screen, but then the game isn't loaded. I've used BootDreams 1.6 to create my disc.

As stated above, the aes file I have created works fine with the windows emulator supplied with aes4all-beta2-fix - so it should work on the DC!

Please can someone help?