Quote from: Ziggy on May 28, 2014, 11:47:52 AM

Quote from: nrigo on May 28, 2014, 10:30:01 AM

PLEASE STOP YOUR COIN2 DEPOSIT TO EXCHANGES !

WE HAVE A NETWORK SECURITY PROBLEM.

The transactions are not confirmed anymore.

Wait for further instructions.

HERE IS A WAY TO CANCEL YOUR UNCONFIRMED TRANSACTIONS AND TO RESTORE YOUR WALLET BALANCE:

Quote from: FredDag on May 27, 2014, 11:52:28 PM

For anyone wanting to reclaim "coins sent, but still with 0 confirmations", without re-downloading the blockchain...
This should recover unconfirmed sent coins back into the available balance (on windows)...

1. Open the C2.0 wallet.... Help > Debug Window > Console > 'repairwallet' >> Recovered amount will be displayed in output.
2. Close the C2.0 wallet...
3. Open the c2.0 wallet with "-rescan" parameter *
4. The recovered coins should now be included in the available balance.

* Shortcut Example
"C:\Coin2.0\coin2.0-qt.exe" -rescan

* CMD Example
cd c:\Coin2.0
coin2.0-qt.exe -rescan

Edit To Add:

As far as I know, this should work on any QT wallet.

Thank you FredDag, it worked fine for me and for others people.

before I see this
I have finished re-downloading blockchain
now my balance of the Qt looks all right
But the same amount is also shown in bittrex as pending deposit
need I do the repair/rescan thing?

After repair, my test deposit is pending too in Bittrex.
Unconfirmed transactions will stay as unconfirmed in the block chain and we have probably no way to cancel them.