When you choose a color constant for a surface, save state and load state switch red and blue value (Ex: a light blue R153,G237,B237 looks next time you launch nviz and restore state as yellow-brown R237,G237,B153). -- Michel Wurtz ENGEES - CEREG 1, quai Koch - BP 1039, F-67070 STRASBOURG cedex Tel: +33 03.88.24.82.45 Fax: +33 03.88.37.04.97