OK, but I have so bad luck or it's most suck coin ever?!
I mine over 70 hours and I found 10 blocks (all immature...). Today all was changed to orphan and was delete from my wallet... It's really not nice and completly demotivated...
You can try to break my badluck with any donation to XPM: AYt9xqb8vCDEQoL6W1hKxJmLwwQ6BvjFA6
Was the wallet able to synchronize before you started mining? Or did it stay at "X days behind" on the bottom of Bitcoin-qt? I'm guessing you mined them all without a current blockchain and then today you were able to download the blockchain and the wallet found out that you found those blocks seperate from the blockchain.