Installation Help - Security Codes

[denmengnash]

I have just bought RCT3 from Amazon and it arrived about 12 hours after ordering. When it came to installing, I followed the instructions until it came to the security code part. The code is on the back of the CD sleeve so I entered it, only for it to come up invalid. I tried again and the same thing happened! Can someone please help me! :confused: :cry:

[denmengnash]

I just wanted to say that I DO meet all of the system requirements and it's the UK version of the game.