So many ideas to help... ...thanks all. The problem seems to be with the Antares Bridge props. I can successfully render Steph clothed with hair at 4096x5700. But the set is still having problems. Poser is running at about 700-800Mb memory useage max so my sway-file's not coming into play. I'll try reducing bucket size. Oh... and what is it with displacement maps breaking up at the bottom of the bucket? That's odd! Howard:)