I have noticed that there are several provinces in the IGC that start out with a negative or 0% growth rate. These provinces are mainly in north africa. The nations these provinces are in have no way of raising them up to a population that would give the city a positive growth rate. Not that they would colonize them further even if they could. This brings me to my second point. The AI will only raise a colonies population up 700. After they hit the 700 mark they stop sending colonists to it. The problem with this is that in many places a 700 size city has a negative or 0% growth rate even with stab+3. This is a major problem. The AI should be programed to raise the pop of the city until it would have a positive growth rate with the nations present technology and a stab of three. I find this very annoying and it seems to me that it would be very easy to fix.