video discs no picture on 2nd screen

[hughwilliams]

hi never had many problems with hoster (apart from obtaining updates). i never had problems playing cdg , i have now moved into playing video discs from the dvd player on board all goes well select the track and away we go , the hoster screen bursts into life but shows the video screen in the hoster screen but not on the 2nd singers screen , it remains in the blank mode, any ideas why it does not transfer, tried cdg and all is well as usual confused, by the way on this machine i transmitt via s video if that helps
hugh