Built with no patches.  Just v0.5.3 basecode.

root@ip-W-X-Y-Z:/mnt/btc-dev/sandbox-v053-base/bitcoin-bitcoin-a8def6b/src# ./bitcoind getinfo
{   
    "version" : 50300,
    "balance" : 0.00000000,
    "blocks" : 168000,
    "connections" : 8,
    "proxy" : "",
    "generate" : false,
    "genproclimit" : -1,
    "difficulty" : 1376302.26788638,
    "hashespersec" : 0,
    "testnet" : false,
    "keypoololdest" : 1423165772,
    "keypoolsize" : 101,
    "paytxfee" : 0.00000000,
    "errors" : "WARNING: Displayed transactions may not be correct!  You may need to upgrade, or other nodes may need to upgrade."
}

1629925 02/05/15 21:31:04 received: block (7111 bytes)
1629926 received block 000000000000099e61ea
1629927 SetBestChain: new best=000000000000099e61ea  height=168000  work=243835201642261706754
1629928 ProcessBlock: ACCEPTED
1629929 02/05/15 21:31:10 received: block (21230 bytes)
1629930 received block 0000000000000a40136b
1629931 ERROR: ConnectInputs() : 2c2314f353 VerifySignature failed
1629932 InvalidChainFound: invalid block=0000000000000a40136b  height=168001  work=243841112905690411140
1629933 InvalidChainFound:  current best=000000000000099e61ea  height=168000  work=243835201642261706754
1629934 ERROR: SetBestChain() : ConnectBlock failed
1629935 ERROR: AcceptBlock() : AddToBlockIndex failed
1629936 ERROR: ProcessBlock() : AcceptBlock FAILED