I just wanted to pop in and let you folks know that after over six weeks of trials and errors, today I finally managed to fly! Lots of circuits, touch and goes and general GA VFR stuff in a 152, for over three hours with not a single CTD.
I did have two big black screens burps (like blinking and keeping your eyes closed for a full second), that made me think the sim was CTDing, but luckily everything was fine.
So, it only cost me a divorce, all my hair, a new PSU and a new 3090! So there’s hope for you all. 