Someone has just suggested that a facility to exaggerate the vertical magnitude when vieweing elevations might be useful. I agree & know that such a distortion has been used in diagrams in many papers over the years. Is there any possibility of putting this on the 'wants' list? Graham -- graham.mullan@coly.org.uk In the UK 0117 9502556 or 07887 637064 France from the UK 0844 2327803 In France 05 53 51 19 15 or 06 02 53 37 81