Last weekend 9/28-9/29, I drove approximately 900 miles and autopilot was wonderful, tracked extremely well in the middle of the lane, and made a long drive so easy. I got the v10.0 update Monday and Tuesday took a drive and was extremely displeased to find that autopilot had changed. The car was jerky, would not track steadily in the lane, would make random movements to the left or right. Has anybody else noticed this problem after this last major update? Who do I report the problem to? I'm hoping this will be fixed and quickly!