In order to keep this 6.41 version topic as clean as possible, please before posting a question or problem report, check 6.42rc version changelog. In most cases problems are already resolved:
Note that rc version topic first post is a changelog of first rc version released. Later updates are posted further into topic:
http://forum.mikrotik.com/t/v6-42rc-release-candidate-is-released/115077/1
http://forum.mikrotik.com/t/v6-42rc-release-candidate-is-released/115077/1