[boost] Thread usage ?

Hi, I am trying out boost thread libraries with VC 7.1 Here are my includes : #define _MSC_VER 1310 #define BOOST_LIB_NAME "boost_thread" #define BOOST_LIB_DIAGNOSTIC "on"// Show library file details. #include <boost/config/auto_link.hpp> #include <boost/thread/thread.hpp> #include <iostream> I am getting the following error : c:\Boost\include\boost-1_31\boost\config\auto_link.hpp(269) : fatal error C1189: #error : "Mixing a dll boost library with a static runtime is a really bad idea..." Looks like I am missing some #define. Would appreciate if someone can let me know about this. Raja