Track and often other objects as well jiggle. Don't know any other word to use; the track sorta advances and comes into focus as the train moves, and shadows sometimes jump around. Often the sides of the locos sorta wiggle. Using windows 10, processor is an i7 4930 @ 3.40GHz. 24Gb memory and a Nvidia 970 card. I've tried adjusting settings including putting everything to minimum, but can't get rid of the jiggle. Monidor is an Asus PB2780 with a 2560 x 1440 resolution. Sure appreciate some help.