Game will not start, please help

I have been playing RCT3 for a while now and it has been working fine. I
have been on holiday for a couple of weeks and whilst on holiday went to
Terra Mitica theme park, which I thought was good and gave me the thought of
playing RCT3 again.

I have tried to play the game but it will not start and I get the following
error message in a small Application window.

relocation index 0x7aec97 doesn't map to this overlay file.

This error has also been sent to Debug.log.

OK - Attempt to continue Cancel - Exit

I have tried uninstalling the game totally and then reinstalling the game, I
then used the update facility to update to update 2, which was working
before. I then tried to start the game and still get the same error message.

I have no idea why it is doing this but RCT3 just does not want to start on
my PC, but it has been fine in the past.

Please help me if you can and let me know what I need to do.

Many thanks to anyone that can help.