Has anyone played a PbEM game with AI opponents involved? I set up a game with me, a human, and two AI players. Once I've finished it tells me to email the save game to the other human. He runs the file, does his turn, and it tells him to email to the first AI player! He emails it back to me and I load it, and I'm now playing the first AI's turn.

I've tried it twice, once mailing myself the file to test and it did the same thing both times.

Also, there seems a flaw in the PbEM system, because once you've started a game, you can load the save game that's for another person and see all their stuff. Is there a way to prevent this?

Yes, passwords.

Ok, I think I figured out the problem. I didn't realize that there are by default 8 player slots. I was setting the ones I could see to "Closed" but I guess there were some below it still being set to "Human". I noticed also that changing certain options will re-add a human player for some reason. Anyway, I'll post if that doesn't fix it.