This isn't really a bug but it did make me a bit nuts before i figured what was going on...

if you enter a url like

(url)http://nsa2.www.conxion.com/(/url)

and have the automatically parse urls checked

it returns

(url)http://nsa2.(url)www.conxion.com/(/url)(/url)

probably not a big deal since most urls don't have www in this configuration but thought you'd like to know...