Hi guys,
I had 15 (but I only found a picture with 10 eth) mining reward one my etherbase Account but my Mist wallet wasn't synced. Today it finally synced and my Balance is 0eth. There are no transactions. I also tried to Check Balance with the console it also shows 0eth what did I miss

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Are you sure you did not spent the ETH before, so that when the blockchain was syncing you had still the coins but when updated balance is 0 cause they got spent before..
Maybe this could be an issue.
What returns the check balance on the geth console?