i've got a new sanyo plv z1, but i've been having problems when its been connected to my toshiba dvd. connected by video or s-video i can be happily watching a movie, but then either the image will start to flicker or it will cut to a blue screen which 'blinks'. I assume its a problem between the projector picking up the correct signal from the dvd, but i don't know to solve it. Any ideas. thanks mike.