People who are still experiencing a zero balance and other issues:
1) Close the client
2) Delete DIRA folder in Users/Roaming
3) Start again
in order to force a full rescan of the blockchain.
As soon as possible we'll answers to the other users questions.
and i can see my private key in explorer, can i add it manually ?
Could you please follow the steps above?
edit: i want to say that i still have the message "Not forging" but now i see my balance.