Pen settings are different on two similar workstations

We work with a printing company and have a special plot style table that we use with them. When I plot the drawing, and then view it with Buzzsaw Apprentice, I can see when the pen styles are correct because they are listed on the left toolbar. These two workstations appear to produce different pen styles, for some reason, even though I have them set up the same as far as I know how.

Both workstations are using the full version of AutoCAD Architectual Desktop 2007, and use the same plot style table (shared on a file server), and am testing them with the same drawing (also shared on a file server). I have exported the user settings from one workstation, imported it on the other, and set as current, to no avail.

As a novice with AutoCAD, what could I be missing?

The problem seemed to be with the plotter setup. I created a new file with the plotter manager and it seems to be producing the results I want.