[warlord]

thanks again guys - problem fixed......remaking the mask fixed it.
ended up hand painting a new mask edge with hard edge brush at 100% to be sure that there was no fuzziness or opacity.
probably a newby error - kicking myself really....but from memory i used paint bucket to fill selection to create the mask, and never checked that the edge boundary was crisp....
mental note - - - always double check masks !!!!!
cheers
Lincoln