LeeGlen

I don't understand any of the coding and since I have a similar XP build, I was having the same problem which I tried to fix for about 3 days. Then one day I started XP with a Laminar C172, surprise, GTN 750 came alive although it was a 2D model, I could live with this. So then I changed aircraft to the Carenado F33A which is what I wanted to use in the first place. Surprise again. There it was working just like I had hoped. Go figure. What I'm pretty certain is Windows Defender had been blocking some questionable files within the DLL files. After the very latest update of GTN750 I think they might have addressed that problem since I don't see the blockage anymore. Hope this works for you. regards, Lee