I'm now able to get a solid 30 frames with anti-aliasing on,all settings high in instant action (Black Shark)insurgent mission with NO stutter.One thing I did do differently however was increased my page file to 64 gig,something I never did before.This on an HDD.I had skipped the usual "defragging"of the hard drive afterpatching,just to see what would happen.I really don't know if it was the patch or the page file that made the difference