I have been trying to install Win xp home edition since this morning. I even got on with Apple Customer Service to no avail. The problem is as follows: -I have an original Windows XP Home Edition SP2. -Bootcamp had already been updated to 2.1 When I restart the computer to complete the conversion to SP3, I get an error message saying that the product key has a problem etc.. It should not have a problem, being that it is a certified copy of Microsoft Win XP sp2. I have to over and over again take the program out and reinstall it as instructed, and still get the error message. HELP!!! Maybe someone here has something to help me. Thanks!