Prompt user on automatic updates for Workbook Links
 

We have got an excel file that has links to another excel doc. Users are
prompted to upate when opening file. Just recently one user noticed that
they were not getting prompted anylonger to update and the update was
occurring automatically, which we definitely do not want. In checking the
trust center on computer in question under External Content Prompt for data
connections and workbook links are both selected. Checked multiple versions
of this excel file from multiple computers and this is the only one were the
prompt isn't occurring. Any ideas??? Thanks!