6 computers on 1.3.109. 2 others needed proxy support and after failed testing with 1.4.x I abandoned BT and moved them to ownCloud. Mostly because of issues with port reset, peers not seen and not starting in tray. Only 2 computers are on 1.4.x for testing purposes. BT bugs are getting worse (proprietary) while ownCloud (open source) is getting better.