well, mine actually stop working out of the blue. I went to sleep and left it charging and when i woke up it had a black screen though anything else worked: it rang, the flash would work if i uncovered the lens and shot a picture...
then i tried to connect with my tv to at least have a screen and the TV also showed a black screen, so i think that the problem is related to the video output of the phone, both to the screen and to the AV out...
right now im still figuring out what im gonna do... might send nokia usa an email asking what to do with it, if i have to send them or what...