Heya FTJR, glad you were able to get you a new PC so you are able to play AH3
If you don't mind, could you post the top 1/3rd of your DXDIAG REPORT, or post the specs of your new system?
If you don't mind flying without Shadows enabled, that is another graphics setting that will free up some fps
Also on the main menu (where you decide to fly online or offline, you can go into your video settings and if you're flying with 4096 textures, you can possibly turn them down to 2048 textures or even 1024 to gain a little more fps
Also, with the new version of AMD/ATI video drivers now called Crimson, there is a setting where you can go and lock in the fps that you desire the game(s) (well, the video card) to run at...
Hope this helps and best of luck
TC