Edge Colour

I'm using SW2005, and am quite familiar with the system. InSHADED WITH EDGES mode, it normally displays all edges as black,regardless of the colour of the part. However, yesterday I musthave hit something by mistake, because now the edge colours of eachpart are of a similar colour to the part itself, i.e. a green parthas pale green edges. I really want to get back to black edges foreverything, since it is much clearer. I've tried everything butcannot change it. ANy ideas out there?SolidworksParts And Features