I have installed Chaos Theory and tried to launch the game. When I do so, I get a small window titled "protection." It asks for me to enter the cd-key. I have two key's given to me. One is on the back of the manual and the other was on a sticker within the DVD case, above the disc (this one is titled "Install Key Code"). I enter the latter, which has 5 groupings with 5 letters/numbers each. However a message comes up telling me that the key is incorrect or has been mistyped. I have checked it over at least twenty times and I'm certain I have entered it correctly. I have also searched the DVD disc itself for a key but it has none. Can anyone help me?
I am running Windows XP Home Edition
ATI Radeon x300 128MB