Hi, I am a first time poster to this forum. The reason I posted was to confirm, in my case as well, that if you are have stuttering problems in the Icon plane you should trun on the moving map on the dash and "hey presto" it now runs as smooth as silk!!!It did in my case anyway.....and from what other posters has said it does seem to be a problem. However, when using planes without the moving map installed in the dash the stuttering comes back.Thanks for listening