are you on a mac? the bug may not have been fixed in the mac version yet
I am not a native speaker and not an IT pro. What does "a mac" mean? I am using Win 7, and my PC is much stronger that it's needed to play the game.
The fact is that I am an extremly good player in Civ3, alway playing Deity Level and winning the game before getting to Industrial Era (believe it or not?). I skipped Civ4 until I read an article about Civ5. Thus, I bought the disk, installed it and played right away "immortal level, huge map, max AI player and city-states..." (of course after playing the tution game to see how to control funtions).
I immeditately found out the way to win highest-difficulty-level games in Civ5, which was by "cheating other AI' golds". After setting up the game, I negotiated with other AI, providing them gold in turn and geting and amount of cash. I used cash to buy military units right away to build a stronger army than that AI, declared war on it to avoid paying gold in turn. When my army is stronger than that AI, it is easy for me to negotiate peace with it (some even pay me to have peace in some cases), and I do the same to other AI. I believe that, by using this strategy, it's not too difficult for me to win a deity-level game.
Now, problem occurs. After several times declaring war and negotiating with an AI (and making money from it as well), I no longer could re-declare war on it eventhough the peace treaty was 10 turns only. If it was for one AI, it would be not much a problem; but after a while, it happened again with another and another AI (almost the strongest AI, from those I used to make golds). I believed it is a bug of the game, as it is not the Alway_Peace_Option; and I lost interest in it and gave up playing until today.
Yesterday was X-mas weekend, I was at home alone having nothing to do, and tried to search on Internet to see if there's any patch to fix this bug. It's seem to me that there's none yet. I indeed want to restart the game, and that's why I posted up the msg to ask for help from everyone here.
Besides, I am wondering if Firaxis has fixed the bug. If they do not do it, it's quite a pity for such a good serial game to have this kind of bug.