I've just discovered that bits 14 and 13 on the Balloon 3 LCD connector are swapped over, which explains why my greyscales looked odd. Pin 23 should be LDD13 and pin 24 should be LDD14. Fortunately this is easy to work around with the mods on the LCD interface board but should be fixed... Chris -- Chris Jones - chris@martin-jones.com Martin-Jones Technology Ltd, makers of Solidlights 148 Catharine Street, Cambridge, CB1 3AR, UK Phone +44 (0) 1223 655611 Fax +44 (0) 870 112 3908 http://www.solidlights.co.uk/