I have a Sony Bravia Tv Model No 6616071 and have been happily playing films downloaded from my PC via a USB stick in one of the USB ports in the back of the TV. Recently the film suddenly stops screen goes black and I get the message "Media Player has stopped working" The TV then does not respond to the remote so I have to wait a minute and turn it off at the mains. TV comes back on but I am still unable to play the programmes off the USB stick. Has anybody come across the problem before. Sony helpdesk just keep coming up with the same thing. Turn it off wait a few minutes and then turn it back on again.