I haven't played GC3 since GC4 came out, but I remember that when I was playing I'd often see a message from, say, the Arceans on one turn, then a turn or so later I'd get another message - the message window would open, it would display my last message from the Arceans, then the message would be overwritten by a new message. It's like the game engine was was opening the message window without refreshing its contents, then overwriting whatever was there. So I was really just getting one message but seeing an old one for a moment.
Perhaps this is what you're seeing?
