OK, running from tortoisehg working dir, not installed. 1. Running hgtk vdiff gives "No visual diff tool has been configured". Then takes me to userconfig. But userconfig says: Visual Diff Command: kdiff3 ~/.hgrc says: ... [extdiff] cmd.vdiff = kdiff3 #opts.vdiff = -m [tortoisehg] vdiff = kdiff3 What's missing?