Hi I'm new to Boost (using 1.41.0) and specifcally the BGL and am having a small problem with accessing graph concepts. My IDE (Eclipse/CDT) and compiler (GCC 3.4.5) are having trouble seeing definitions of graph concepts, although I have included boost/graph/graph_concepts.hpp. When I type the boost namespace specifier, autocomplete can find e.g. EqualityComparable, but it cannot find VertexAndEdgeListGraph (among others... but this the one I need). I can see the basic BCCL concepts from boost/concept_check.hpp just fine, making this all the more confusing. My paths are correct, as for example adjacency_list (residing in the same path) works fine. PS. Try to have mercy on me, I'm not only returning to C++ after a number of years but I'm also in the process of reacquainting myself fully with generic programming (and the STL), something I was never too great at... so a lot of things still meet with a blank stare from me. I've just been learning these things slowly by example and by trial-and-error so far. TIA, -- Nick Wiggill skype: nickwiggill nick.wiggill@gmail.com www.handcraftedgames.net -- "He uses statistics as a drunken man uses lamp-posts... for support rather than illumination." -Andrew Lang (1844-1912)