DDS BOX() shading - not printing

[lkmalee]

Does anyone know how to print a shaded box from iSeries DDS using AFPDS and the BOX keyword.
IBM online docs show this example:

     A          R BOX4                      BOX(1.2 0.5 5.1 6.3 0.2 +
     A                                      (*SHADE 50))

but it doesn't work. The outline prints, but no shading.

I am printing to an IBM 1464 Color laser connected via IP. It is AFP capable and I am able to get color text and color lines of the box to print.
I am attempting to print a light yellow box to highlight some text. Here is the line I am trying to print:

  A                                      BOX(5.8 0.6 7.0 7.5 .2      +         
  A                                         (*COLOR *RGB 100 100 75) +         
  A                                         (*SHADE *MEDIUM +                  
  A                                                (*COLOR *RGB 100 100 75)))

The line thickness is set very thick in an attempt to 'fill' in the box with the line (which doesn't work because the line overlays the text).