I've tried changing virtual mem as suggested with no effect. The drive is less than 15% full at the moment as its a new installation and the object I'm trying to render is p4 dork with no props or background. 800x640. My machine and Poser were running perfectly yesterday. This has changed overnight. Defragged, virus-checked and STILL it says not enough disk space.

Expert in computer code including, but not limited to, BTW; IIRC; IMHO; LMAO; BRB; OIC; ROFL; TTYL. Black belt in Google-fu.