I have a working copy of the game on my home computer and i've downloaded another copy onto my other computer to play when I am at my girlfriends place. I have a problem when starting the game. It gives me a message "The product appears to be vailidated but the serial number or the machine SID don't match." I have no idea what this means. Can someone please help as I do not want to die of boredom when my gf is out. P.S. Great game btw.
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