well, did another mountain run today. used the rear brake a little more than usual. after a little while, it had zero feeling. i figured that maybe the master cylinder just got too hot and the fluid was boiling. well, i let the bike sit and cool for a little while. got back on and there was still zero feel. i'm on my way home and i stopped by a little (and i mean little) ducati shop. he had an F4 sitting out front. i started talking to him and i showed him the rear brake lever. he pushed on it, looked at the master cylinder and thought the same thing i did. too hot. but, after some more snooping around, we find a nice splash of fluid on the inside of the belly-pan. i guess one of the lines got punctured or blew a small hole somewhere. yay. anyone else ever have this happen? do you think it'll be covered under warranty?