In fact, the game's standard enforcement mechanisms to penalize characters that break strategic alliances by forcing them to remove hostile troops have been removed. However, some game design decisions make interacting with other civilizations a little more annoying than they have to be. Chat modes bring up a modal dialog box that obscures your screen. Chatting can be a real nuisance when it is your turn and would have better been served by an interface more a la Warcraft or Heroes of Might and Magic II, where the message window is either yet another open window or overlays messages briefly onscreen. Either choice simply scrolls along and does not interfere with your ability to make movements in the game the way the Civ II chat function does.
Weird things can also happen in trying to set up trades.
Also, when making offers to trade tech advances you have to scroll through a list of ALL tech advances, whether the opposing player might have them or not to trade. While understandable that the game designers did not want you to get sudden knowledge of what technologies your opponents had without an embassy there, once an embassy is established an abbreviated list would have been appreciated. You also can't call up your science advisor's report when wanting to trade technologies without exiting the deal screen and having to go back and reinitiate the diplomatic process, making dealing making a sometimes tedious process. One of my biggest disappointments comes from the scenarios. The scenarios offer a lot of new and exciting units in games and different themes.