PlotBorder_dp Warning in Print Organizer

I have been receiving this warning from Print Organizer for quite some time.  The warning message is " 'Plotborder_dp' is not a valid level for file '...' and occurs with each file added to the print set. I have to hit ok in order for the program to add the file and move on to the next drawing. This is a pain when dealing with multiple files. Is there a way to stop this or deactivate the warning?