The complete question was: "I have noticed a consistent problem with the displayed maps in my O sessions. Currently, we are using O version 5.9 installed on sgi's. The problem I have noticed is that my maps, which look fine when displayed during a graphics session on a iris 4D440, when the graphics session is conducted on one of our personal Irises the map appears nearly opaque(line_type 1: solid line). I have tried modifying the intensity of the displayed map with the map_parameter command <front_intensity back_intensity>. Varying the values from (1.0, 0.1), (0.5, 0.1), and (0.1, 0.0), this appears to make no difference in the opaqueness of the map on any of our SGI machines. Is there any way to reduce the intensity of the drawn map ?"

Morten replied: "Those map parameters have no effect on the SGI versions. The parameters are a left-over from the PS300 days, but have actually been re-introduced for ESV and HP versions. A work-around is to choose a dimmer colour, for example, if your maps are red =(1,0,0), choose dark red (for example (0.7,0,0) ) instead. (Remember that you can enter r,g,b values instead of colour names!). If you're using O 5.9.2 or later, do a

 db_kill .map_*