Cannot print in monochrome

V1R4
Even with the print style table set to monochrome.stb, the drawing preview displays lines in color and the file prints in color. The PrintStyle is set to Style_1 for all the layers. Also, the Style_1 parameters in the Print Style editor cannot be edited and have the edits "stick". Reopening the Print Style editor shows all of the parameters reset to the original values e.g. the color is "various". Shouldn't this table display the settings for the correct print style? I have uninstalled and reinstalled Draftsight, to no avail. It is as if the Print Styles functionality, at least the named print style version, is completely broken.

OBO:  DraftSight user