Fable

I bought Fable: The Lost Chapters for PC last week on Amazon. Hadn't ever played it, and was looking for a good RPG for the PC. It arrived yesterday. When I tried to install it, it told me that the product key was invalid.
Great.
After 1/2 hour on the phone with Microsoft Support, I got a new key and it worked like a charm! Don't know what was wrong with the key printed in the case.