Forgive me for intruding into a social forum with this mystifying question BUT . . .
I have a sandbox in Moodle 2.0 with Gnomio; and they have been upgrading the system periodically. Tonight, the message says to nominate a PathtoDot if I want to generate graphics from DOT files.
Well what an overlap! I don't know where to place this query in the User forum; so I mention it to friends who hover around the Lounge and may comment on such things.
All is well: I'm enjoying my sandbox at smartadata.mdl2.com and you are welcome as a guest or participant.