Glad to help -
You can remove the dupe transactions using pywallet
. Instructions are in the thread.
I was literally just about to post that
You'll want to remove those transactions, just in case Bitcoin decides to use them in the future, causing you to send a transaction that will never confirm and would lock up your funds.
Is this possible? I have another transaction of the same amount on the next day... I think that's the case.
Yeah, SatoshiDice has been having issues with the transactions they've sent out, so they sometimes have to double-spend a transaction that hasn't confirmed after awhile in order to make sure people get their money. You still end up with what you won, it just causes weird issues like this.