I have a problem with the picture... firstly it freezes and then starts showing only about four frames per second with each frame held in between. Then after a few minutes it starts showing the frames out of sequence, when there is a shot change the picture flickers back and forth between the shots. Then a few minutes later if flickers more and then just displays vertical coloured stripes which occasionally flicker and change colour. Finally it goes dark, if you change channel however the ident appears on the screen as normal. I know this is not the DFS / DEF Board (Scan Converter), as I have just replaced it (courtesy of Toshiba, and your advice), and the fault has remained identical. If it is left off for a while, it recovers and will sometimes work ok for quite a while, other times the picture break down within minutes. Anyone come across this one before?