Checkboxes are not part of Times Roman, but part of a font like Symbol or
Wingdings -- by the sounds of it, this font is different on your two
machines. Go to Insert > Symbol and check.

We have two computers in our office bought at the same
time.  Both have Microsoft Office.  Both are using Normal
template with times roman 11 font.
However, we use clear boxes and filled boxes for marking
yes and no.  The boxes on one machine come out clear and
filled.  When openning the same document on the other
machine the boxes have check marks in them and print that
way also.
  EIS Scoping            Mandatory EAW           
Citizen Petition
  RGU Discretion       Proposer Volunteered

Any information you can give me would be appreciated.

Thank you.