I've installed the game twice because each time I tried to play the demo I got the message that essential files were missing. It still won't work. Did anyone else have any problems with the demo?

Try this...Install the game, after you get the Error Message "essential Files are missing* and without uninstalling the game, run the Install again.

Have you tried downloading the demo from somewhere else? Could the download have broken off before it was complete?

GreyFuss, I'll try that. Jenny100 I got the download from the official site, but I'll look around.

Edit: What do you know. It worked! Magic!