I'll add to Ian's post that it's important to have the newest version installed as found at the NXT download page I linked earlier. I was unintentionally trying to download the blockchain with outdated (but still new-ish) version 1.4.5 when I should have had the 1.4.6 executable (that still identifies as 1.4.5 until the block chain is finished :\)
--
New Offers
Offer Code BeneU023: I have 20 UNO to sell for 0.156 BTC
Benefactor, if BeneU023 is still available, I have some BTC for you. Please confirm and I'll send promptly. Thanks!
Deal! my BTC: 1AvPYxy7Qs5oT8AcDvqrbGiXQSJmsjjeXB
Per the star system seniority etiquette, please send first. I should use the UNO address in your signature, right?