A recent check-in of mine (https://svn.boost.org/trac/boost/changeset/60706) broke proto on msvc-7.1. For instance, see <http://tinyurl.com/yg5wgw5>. I don't have access to this toolset anymore. Is there anybody out there willing to give this problem a shot? Or is it time to drop support for this old compiler? -- Eric Niebler BoostPro Computing http://www.boostpro.com