Just a quick question out of curiosity while I test my monitors, have you tested this behavior in cloudy weather doing the same fast panning OP shows? I ask because I mostly notice this with TrackIR in cloudy conditions because the view is always moving a bit. I’m not at all doubting that you don’t have the problem (I suspect most people don’t or we’d hear a lot more about it), just curious because some days I forget it even exists until I am in cloudy weather with TrackIR again.
Edit: Switching monitors made no difference, so it doesn’t seem to be the cables or monitors, as they are very different. That doesn’t mean it isn’t the GPU itself or some setting, though. I’ll continue to test some stuff. Here’s a video I just took, same behavior on both monitors. It’s particularly noticeable around the 15 second mark with the light post.