<div class="im">> You should also replace boost::bind with boost::lambda::bind.<br><br></div>That's it - i did not understand that there is a bind and a lambda::bind and that <br>they are not the same. I learned from books and because the introduce everything<br> early with using namespace declarations i missed that. <br><br>Thank you and Thomas for your help - i realy got a "boost" in understanding this stuff<br><br>Simon<br>