Hello,
I do not understand one thing. Specifications of my computer is listed below in signature. When I fly another plane (default or addon), I have about 60-70fps on high settings and resolution 1920x1080, it is great. But when I load the 767CS, the framerate decreases to very unplayable 13-15fps. I tried everything, change settings to low, change settings in the fsx.cfg file and nothing hepls, the fps rised only to 14-16fps. Can you pleasy tell me why this happens? I know that FSX has very badly optimised engine, but decrease to 15fps from 60fps is very large.
I bought the computer for his ability to play this addon, but the fps is the same with my notebook  :'( :'( :'(