Just wanted to give a heads up to everyone. The newest release of nmap was released last month; be sure to update your software. Most importantly, DO NOT download NMap from any other place besides Fyodor's www.insecure.org.
In early June, it was discovered that Sourceforge STOLE the software from Fyodor, a move that has the father of nmap incredibly upset. The possibility of of legal action against the website is quite possible, if not likely. Spread the word!