Guys if you want to be sure yo are on good fork:
-open console
type: getblockhash 2047

0000000035cbe5efabdb67725cb3e975ae4a28abb58cdbbdfef610a05413c01c

again, to be fu*king sure: getblockhash 2200

000000000df18a09520465897f08a28d59fa8a4f4be909de7212f9867bbb063c

Those are correct results :-)