The title says it all realy, I downloaded a polyphonic ringtone from a wap site, tried to play it after saving it and the phone turned off. I turned the phone on again and all was well so after a while i tried to play the ringtone again and the phone turned off again and now it wont power on at all.

Is this a problem with these phones and is there anything i can do to revive it?

Thanks

Stuart