Hello everyone, I am having problems using boost::condition in win32. I have two threads waiting on a condition. When I call condition::notify_all() from the main thread, I expected both threads to fall through and proceed simultaneously. But that is not what I am witnessing. They behave like I had called condition::notify_one() twice. One thread continues, does its thing (in this case a simple Sleep and a printf) comes back to wait. Only after that point the second thread continued from the condition. Is this expected ? What am I missing ? I can post the code if anyone wants to take a look. My setup: boost 1.33.1 Visual C++ 2005 Windows XP SP2 I have no other problems with building and running boost classes. (I think the 'barrier' works as expected..) appreciate your time. thanks pj