You know when you're in trouble when the consultant says "interesting" .

Thanks for the quick response. I'll play with a live ubuntu over the next day or so and see what happens.

Yes. And again after your question, just to be sure :). It is quite short. Walls (and plans and polylines) are drawn in sequence click move click move click ... double click to end. It is also possible to press enter to end the sequence and bring up a properties box. Alternatively, pressing Esc ...

Thanks for that. I forgot to try it. Hmmm..., unfortunately it produces the same result.

As a slight modification to the story so far, I have been able to produce short wall objects by a sort of click-double-click action. This works from both startup files. In one surprising case (I don't know ...

Nor can I create walls or polylines.

I've just installed SH3D 5.4 on Debian and I'm using the java instance that comes with the download.

When start a plan I click on the add plan icon. I then click on the drawing area and drag the mouse. At first, a thickish line is drawn following the mouse but ...