Hi: When compiling boost 1.43.0 (release) from the website, I get the following errors with the GraphMl library: compile-c-c++ bin.v2\libs\graph\build\msvc-10.0\debug\link-static\runtime-link-static\gr aphml.obj graphml.cpp C:\Program Files\boost\boost/property_tree/detail/ptree_implementation.hpp(30) : error C2440: 'specialization' : cannot convert from 'const std::string std::_Pair_base<_Ty1,_Ty2>::* ' to 'const std::basic_string<_Elem,_Traits,_Ax> std::pair<_Ty1,_Ty2>::* ' with [ _Ty1=const std::string, _Ty2=boost::property_tree::basic_ptreestd::string,std::string ] and [ _Elem=char, _Traits=std::char_traits<char>, _Ax=std::allocator<char>, _Ty1=const std::string, _Ty2=boost::property_tree::basic_ptreestd::string,std::string ] Standard conversion from pointer-to-member of base to pointer-to-member of derived is not applied for template arguments C:\Program Files\boost\boost/property_tree/detail/ptree_implementation.hpp(78) : see reference to class template instantiation 'boost::property_tree::basic_ptree::subs' being compiled with [ Key=std::string, Data=std::string ] C:\Program Files\boost\boost/foreach.hpp(265) : see reference to class template instantiation 'boost::property_tree::basic_ptree::const_iterator' being compiled with [ Key=std::string, Data=std::string ] libs\graph\src\graphml.cpp(37) : see reference to class template instantiation 'boost::foreach_detail_::auto_any<T>' being compiled with [ T=boost::property_tree::basic_ptreestd::string,std::string::const_iterat or ] call "C:\Program Files\Microsoft Visual Studio 10.0\VC\vcvarsall.bat" x86 >nul cl /Zm800 -nologo @"bin.v2\libs\graph\build\msvc-10.0\debug\link-static\runtime-link-static\ graphml.obj.rsp" ...failed compile-c-c++ bin.v2\libs\graph\build\msvc-10.0\debug\link-static\runtime-link-static\gr aphml.obj... ...skipped libboost_graph-vc100-sgd-1_43.lib for lack of graphml.obj... ...skipped libboost_graph-vc100-sgd-1_43.lib for lack of libboost_graph-vc100-sgd-1_43.lib... ...skipped libboost_graph-vc100-sgd.lib for lack of libboost_graph-vc100-sgd-1_43.lib... Visual studio 2010, windows xp 32-bit. Could a patch be provided, or is there a fix. I've not checked with the latest svn trunk, as I'm restricted to building with 1.43. Cheers Sean.