I have been having all sorts of trouble with the demo. The other day, i went to Electronics Boutique to preorder the game. They gave me the demo and i took it home. I had had trouble with the CGW disc demo, but figured, "What the heck, see what happens."
I installed it and it worked. I suggest you do the same thing i did. I like killing Nazis.

I got the demo disc free from Electronics Boutique in So Portland Maine on a business trip. It didn't work for me at first because my video driver wasn't up to date. Make sure your drivers are all the latest and it'll probably work like a charm.
Dave T

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Thank you U.S. WWII combat veterans

the CGW demo didnt work. The retailer one did.