Hi, ive tried some to build some circuits with ktechlab, but this counter doesnt seem to work (0..3). http://metalfan2.me.funpic.de/tmp/ktechlab.png http://metalfan2.me.funpic.de/tmp/firstcircuit.circuit Any ideas whats going wrong? the circuit is working fine in Logisim (very ugly software ;) greets metalfan