100% image width in single post pages
 

Despite removing all padding and margins in the theme options, and setting the images to 100% width and height using the edit image options when posting, I still get a 10px (at a guess) border around the images in single posts. I would like the image to go right up to the edge of the post container. Any ideas?

http://www.susanne.treacletheatre.co...rdpress/?p=257

Thanks,
Kaspar