I remember when this site (http://www.venetubo.com/fsx.html) first came up here. At the time I had a stable FSX install and never tried it. Since then two things happened. 1) I forgot about it, and 2) my FS computer blew up. I have a new one now, and decided to try it, after you linked to it in the FTX Global thread. Very cool site. No more stutters, with any plane. I haven't yet tried the suggestion about setting the frame rates in FSX to unlimited and using "external FPS limiter", which, they say, will result in "massive" performance increase. That sounds interesting...