You won't see in Print Preview what cannot be printed on the page. Word interrogates the printer driver in order to calculate the layout the page and in Print Preview to display how it should look when printed on paper. (This is principally the reason that Word won't work without a locally installed printer driver.)
So if you place anything in the non-printable area defined by the printer driver parameters, those bits won't show up in Print Preview or on the printed page. In other views, the layout is a compromise, so you usually see objects that anywhere o the page.
I can only guess that one profile is using a different default setup than the other profile. This is why I suggest looking at the Printer Setup to see if there is a 'use minimum margins' option.
Regards: tf1