I'm still having issues with my wallet, and the 20 DRK stuck as "Unconfirmed"
The balance prior to RC4 was 42.72489229
That top transaction is also out of order. Prior to updating to .31 it was 3rd.
This seems like an older bug that Evan addressed here:
https://bitcointalk.org/index.php?topic=421615.msg8353277#msg8353277Have you done this procedure on your wallet?
If you have a long standing unconfirmed transaction, simply right click the transaction, copy the txid. Then execute the command "erasetransaction txid" in the console. After that reopen the client with the command -salvagewallet, and the money should be back.
If not, I think that will fix you right up.