I have set up a custom ctb file and configured white to print with a certain line weight on color 255. When I print all the other colors print correctly but white seems to revert to a default fine setting. How do I correct this?
Are you sure it's 255, and not 7? it helps if you stop calling it "white" and it might then be more obvious if that's the problem.
Also, plot style tables have no effect on Plines with width settings: ensure that's not also the problem.