I've noticed ever since 1.08, the AI is pretty dumb and not agressive. I've put myself at harder dificulties then them and even checked the box for them to be uber agressive but they still don't attack you even when at peace. Their management also seem to be sub par to what it was in 1.07. Sometimes an AI will go back and forth with its only ship between two Indian tribes. With 1.08 (I haven't downloaded 1.09 now as we speak cause I'm playing a marathon game with someone on the net), the AI took a really big step backward and I couldn't say why.