prboundary display issues

Hello,

I have some skill code that sets the visibility of selected sets of layers.  Here's an example:

procedure(OnlyC4()
leSetEntryLayer(`("C4" "drawing"))
leSetAllLayerVisible(nil)
ShowC4(t)
)

The problem with this is that the "leSetAllLayerVisible(nil)" command is turning off the display of my prboundary objects.  When I look at the Objects palette, the prboundary objects are set to "visible", but they are not displayed.  There must be a display layer associated with prboundary objects that is being turned off.  Is there a way to prevent this behavior?

Thanks,

Rob