I've got a Civil 3D Project with about 5 or 6 map layers in it (I used the map tools to connect to a shapefile). Everything runs great, it updates, etc., except when I zoom in. Past a certain point two layers start to flicker. Parts will render at certain zoom levels and parts won't. What can I do to fix it?
N.B.: I've tried regenerating, refreshing, and re-opening the drawing.