[galaxy-dev] dotmatcher error

Hi everyone, A little problem with the dotmatcher tool in Galaxy from Emboss.I've got this message : Tool execution generated the following error message:Devices allowed (with alternative names) are:- ps (postscript) hpgl hp7470 hp7580 meta cps (colourps) tek (tek4107t) tekt (tektronics) none (null, text) data svg Error: Invalid graph value 'png' Died: dotpath terminated: Bad value for '-graph' with -auto defined And one more question : Are we able to move on the "png" graph generated by this tool or is it just a static picture? Advance thanks friends, Siva