Tiger Woods PGA 08 garphics support problem

Hello,
I have a imac 2.4 GHz Intel Core 2 Duo
2GB ram
Mac OS X 10.5.6
ATI Radeon HD 2600

When I try to start the game Tiger Woods PGA 08 I have this message:
"The game do not officially support the video card. You may experience graphical anomalies or performance problems while running the program."

I admit that I am not very good at pc, but apparently the card does not support graphics of the game ...... is there way that can explain how to run it
Thank you in advance
I look if there was a post similar to mine but I found nothing.

The message says that the card may have trouble properly display the graphics of the game It says not that it will not work at all. As you tried to go further in the game?

When I have a message, I am doing OK and nothing more .....I have not tried ESC, or anything else

you should also see if there is update on the site of EA Sports.

You can repair the authorizations with the disk utility you have in your utility folder also check minimum game requirement and compatibility with MAC OS