The only things I were doing was double checking the Nexuscast stream info. Making sure the ip, port number, address, and title were all typed right. Perhaps it's because Edcast dll's are in the directory or something. I will try a clean install (though retaining my Winamp.ini because I don't remember everything I've set by any means)
OK, still crashed, roughly at the same time as this Modify Post timestamp.
Crashed again with a clean winamp.ini just to be thorough. So now I'm out of ideas. : (