I'm running a 1.3 patched game with the latest 1.3-compatible AM (and running crash-free, don't worry, this isn't gonna turn into another OMGCTD flail).
I wish I could help. Mostly I am posting to thank you for a clear, well written and non-flailly post. I have read too many posts today that make me logout and go bang my head on a wall at the level of stupid that exists in humanity.
I hope Pescado will be able to help you, you have clearly done everything in your power to help yourself.