I would like it to deadlock on windows, because I just wrote a large header file, which assumes that a deadlock will occur. In fact, I don't know how I am going to program mutex's and locks, if they act like recursive locks on windows, but scoped locks on linux. #include <boost/thread/thread.hpp> #include <iostream> using namespace std; void hello() { cerr << "this should deadlock" << endl; boost::mutex foo; boost::mutex::scoped_lock lock1(foo); boost::mutex::scoped_lock lock2(foo); cerr << "if you see this, then there was no deadlock" << endl; } int main(int argc, char* argv[]) { boost::thread thrd(&hello); thrd.join(); return 0; } --------------------------------- Never miss a thing. Make Yahoo your homepage.