Sorry, I discovered you have to set $srfgFormats[] = 'graph'; after reading the instructions for the process format.

On Sun, Jun 28, 2009 at 6:28 PM, Brian <Brian.Mingus@colorado.edu> wrote:
The Graphviz extension works but format=graph does not. The SMW wiki is having the same issue: http://semanticweb.org/wiki/Bordergraph