Haven't had this problem going back to r13 (not 2013... 20 years ago). I've tried new drivers, I've tried playing w/ PLOTROTMODE, I've tried creating a custom page size, I've investigated driver print rotation settings. Everything looks proper in the plot dialog mini-preview, but the full print preview (and print) are screwed up (see below). Thoughts? This is in ACAD 2015, Windows 7, PC is an HP Z420.
What my plot dialog looks like:
What my print preview (and print) look like (landscape):
Gotcha... mostly work in Inventor these days. So I expand that and I see "Drawing Orientation" is in Landscape... AH HA! Except... no... still no... see below.
Print Preview (not at all scaled to fit):