I would love some help with the Settlers please. I have done the tutorial, and am on level 4 of the Roman Campaign. All I want to do is place some mines, coal, iron etc. I have scouted the area with geologists, been told that I have ideal areas for a mine, made sure that there are pickaxes and miners, food available, yet when I try to place a mine, the option is greyed out and I can't place it. Any ideas what I'm doing wrong? Thanks CJ