I'm sure I'm doing something stupid (as usual) but I can't get the paper I select, for instance Italian Watercolour paper to have any effect whatsoever with my brush strokes, using a watercolour brush, or any other type of brush for that matter.Is there some step I'm missing I just open a new sheet and select the paper from the drop down menu.I can choose any of the papers and nothing happens.I'm using Painter 8 by the way.