Thank you so much BYork. Sadly I went through all the suggestions you sent, (thank you for the prompt reply by the way) spent another 12 hours or so uninstalling and reinstalling etc. I appreciate you've done a hell of lot of work setting this up and there's only so much anyone can do to help by sending files and recommendations. I'm at a loss, I've gone over the help files so often and with great care as I really wanted to get this to work. Several clean installs including removing all file names as recommended but still get the SDK error. Keys work partially but obviously there's a heap of missing files. Installed latest SP1D. Definitely FS is loading default trike as I fly it to check then go to new airport with NGX loaded...so many times. All keys assigned as recommended. Set up config in 2nd panel as suggested, speech is on but doesnt work. I could work with buttons only but that wont connect correctly. SOP2 set and can't change. I'm sure many folks have installed this and are delighted, I will most certainly try again sometime, love the concept. PS, I'm an old real private pilot and love this FS. regards, brentp.