Track IR has been working great up till early this week. All of a sudden, no changes to PC software, hardware or sims, and the view with it is constantly erratically "jittering". It still follows movement, just jumps all over the place. It's at a point where I "can" drive with it but I'll get a headache and make more than my usual number od driving errors. It's almost like driving behind someone with "lag", lol! As soon as I take the clip off the hat, I get the normal view. I've shut all light from the room, checked for any other reflections, reloaded the software with updates, looked at my TrackIR settings for filtering/smoothness stc and all is normal, nothing makes it better or worse. I drive much better with it, you'll appreciate it when we're on track together so help me get my TrackIR back! Thanks!