"Nick Brooks" wrote
| What other sort of line can you get from a laser apart from
| straight? (OK I know it's not REALLY straight as it'll be
| curved by the earth's gravitational field but for most DIY
| purposes it can be regarded as straight)

Great, I'm blaming my last wonky shelves on the earth's gravitational field.
There's a great big lump of rock behind the house which must have pulled my
perpendiculars out.

Thanks for the new excuse. I'll add it to the ******* DIYer From Hell
'excuse of the day' calendar.

Owain