[AccessD] Report's Hide Duplicate property doesn't work with all field types?

A reader recently wrote to me about the Report object's Hide Duplicate
property. It worked fine on the query's primary key field -- a name. But
the query also includes the person's picture, and that's being repeated for
each record. She claims the Hide property isn't available. I haven't tested
this yet, but thought I'd see if anyone else had run into this and what you
did?

SUsan H.