While running in Line command I'm able to snap along the way, snap my running line to itself at each sub prompt: "Specify next point or..." When I try this with the Polyline command, while running polyline at each sub prompt: "Specify next point or..." no snap can be acknowledged. My Polyline won't snap to itself while running toward successive points. All Object Snaps are checked in it's dialog box. Alignment Point Acquisition is set to Automatic. Is there another setting or a system variable that needs to be toggled, maybe something related specifically to Polylines?