have been playing for quite a long time, and noticed that restarts if you maje a mistake are taking longer, and am up to move 435, did a boo-boo, so I restartedand A. after 5 mins of trying to load it crashed, went to the opening movie and stopped working, Win 7 x64 Ultimate, so that part of the game isn't fixed yet, in C4 the bigger your empire and the units that come with it made for long load times, wee the same in C5, I have 13 cities on 2 continent, and another city on the last continent, my toe hold for invasion, found out about Cultural Bombs, something nes, you get a Great Artist, put him on your turf next to the emeny,(across the border) set set him off(there's a option) and the land for one octagon around you now is yous, units get moved back but it's a neat way to grab some space, I don't see how you can get more than 35 or 40 cities, even in the biggest maps in this new game, they did away wirh the square grid and went to a much larger octagon grid, and they did away with the city view, now you just zoom, not nearly as good as before, and I found a really nice interactive users manual online