Hi guys, if anyone has an abundance of generosity, please clue me in as to what I'm doing wrong.I've successfully uploaded the Coin smart contract from https://github.com/ethereum/wiki/wiki/Solidity-Tutorial#subcurrency-example (I've used the exact same code and also code which removes the check for sender == minter). However, when running this code in geth I can't actually access the data. I'm using a private network and have successfully initiated a hello world contract.using geth on mac OSX> coin.mint(eth.coinbase, 10)invalid address> coin.queryBalance(eth.coinbase)proof my method existscoinaddress: "0x1b2a2b88b9bd992b847324f7c953e2ad8fcbc369",transactionHash: "0x5f23d5e0c6f1b3577f9e4b6709c6976efca4b13211edfc6a1948641907310138",Send: function(),allEvents: function(),mint: function(),queryBalance: function(),send: function()Command line started with the following (trying to test with private network)geth --networkid="12345" --bootnodes "enode://be474a567c4f661fff49a5cf932823968f62c067981439872c022322278e0946d [email protected] 10.0.5.75:30303" --mine --minerthreads 1 --rpc --rpcport "8545" console