In the event that Duane's advice still doesn't get you up and running (it should though), try cloning your hard-drive, instead of just drag and dropping your system folder. You may find that a cloned drive works better for you anyway, since you would then have everything you had before, in exactly the same spot. Once your machine is repaired, you would simply reverse the process and continue on with minimal interruption. For more info, try this article: http://www.atpm.com/10.05/cloning.shtml