Thanks TIG, for a quick response.

Here is a sample SKP. DashedLines1. I am using the Sketchup v 8.0.11752 here. There are no 2d layers that I can see. Seems to be the same in v8.0.4811.

What are the settings that could affect printing the dashed lines.
Is the deletion process that I describe on the SKP usual.

Emjay

A very simple model of my incompetence.

I set a 2d line style and draw a series of dashed lines (drains under and alongside a house). The lines are dashed until I stop drawing them. A single left click at the end of a line makes all the earlier ones in the set appear dashed. Then moving the mouse makes the whole set continuous. Another left click turns the set into dashed lines. A double click to end the line-set makes the set solid lines.

What is going wrong, what edge settings or other factors do I have to set ?