Dave, sorry to address you directly. I assume you were absent last week, so nobody answered my posts. :( Can you take a look at them? I have a problem resizing mpl::map to 150 elements. http://lists.boost.org/boost-users/2006/10/22961.php http://lists.boost.org/boost-users/2006/10/22988.php With Kind Regards, Ovanes Markarian