I think I found a bug in the demo when it links to the website.
Its no longer an issue to me as I bought the game now, but just thought you might like to know.
Played the demo for a bit, back to main menu, selected link to website, looked around the site, tried to restart the demo as the previous version had shutdown when linking to the site. It was at this point that I was given a fatal error and the program closed, without even going into the game.
I solved it by removing the demo and re-installing, and 2 days later actually getting off my lazy butt and buying the game, but I thought you might like to take a look into this.