I have to thank you! I have been struggling with the unwanted cockpit drift for months and it was really driving me crazy - sometimes happens and sometimes not. Just this morning it occurred to me that it was happening more with night flights - during which I always keep the room lights off even with VR. I thought it was possibly the night environment of the sim which didn’t pan out when I made it daylight still moved….until I read this post and turned the room lights back on!! This reliably reproduces the problem and solves it….so thank you!!! What a great forum this is 