Help with 7970 and RCT3

I have always played this game until I installed my 7970. It worked fine with the HD4000 graphics on w7 64bit. I have CCC 12.10.

Here is where it gets wierd.

If the game is paused, nothing is effected. I can play just fine, kinda boring though.

But if a created a new park. It freezes the split second the Park Inspected 'spawns' in.

If the park already has a PI, then it runs, but very unstable. I have reinstalled many times.

Any help or tips would be appriatiaced, I don't won't to forget the game.

 *Edit- I have NetOn2 and a few extra CSO's installed, vanilla or modded, same issue

first you should install 12.11 or above, since it increased performance by 10-15%

other than that, try changinc ccc settings to default

I updated my CCC and I see the performance boost, but still no stablity in the game.

Could it be that AMD/ATI no longer support the game?