P3D v2.5 AA issue AMD card

Hello everyone, 

I had finally got my P3D v2.5 ,

but when i try to run it , the Sim looks sharp , i have tried different settings whether from sim settings or AMD CCC,

oh , BTW here is my hardware spec.

HP Pavilion g6 2321

Windows 8.1

RAM 6GB

750 HDD

AMD Radeon HD 7670M 2GB,

Thanks for advance ,

and I will be very thankful to those who will help me .