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I have the game installed, and it has been working fine. If I quit, and try to start it up again, my computer crashes as soon as it begins reading the disk. (I have the 5 CD version). It does not matter how I try to launch the game, through steam, from the desktop icon, or just putting in the disk. As soon as my drive begins to read the disk, my computer restarts. No error messages.
From there I can play again, until the next time I quit and come back to play. I hope someone has some suggestions. Thanks.