The Elf Herself writes:
I'm playing on (gr-r-r-r) Steam, and there's no Easter egg in this version, either. (I gave up on disk when I had to reboot every half hour.) The disk I have isn't the original, either. It's from the bundle that includes the complete Xeen, 6, and 7. I gave my sister the originals to those games. Since MM6 is an add-on to MM10, it technically isn't a real Steam game. (You can't access the various Steam forums from within the game, for example.) At any rate, unlike other Steam games, you can't click on "properties" to find out which version of the game you have.