Has anyone been able to press that unlock wallet button and mint the coins? It has been more than the 20 day waiting period, and the button still is locked... Is it just me or everyone?
Your unlock button is greyed out because your wallet isn't locked. You only need to unlock the wallet to allow minting if you have encrypted and locked your wallet.
He's right, if it is grey'd out, you don't need to click it. You're fine.