Hello!
We've encountered the following problem several times:
We're trying to play Heroes 3 through Hamachi, and the lights are green;
I have the Platinum Edition, and my partner has SoD 3.2;
I create a map, he joins, and says he only sees the intro screen, there are no menus for choosing a faction, I see his messages in the chat, but he doesn't see mine, and when we try to start the game, both computers freeze.
My partner has played with other people who have the Platinum Edition; I've played with people who have SoD 3.2.
If anyone has any ideas on how to overcome this, please let us know.