I have an '07 Featherlite H3-45 Vantare hooked to an '07 30ft Faetherlite Stacker. The stacker has 3 video cameras, one for back up and one for the interior upper level and one for the interior lower level. This problem is very strange and I was hoping that one of the resident experts here can shed some light on this issue as the guys at Featherlite in Lake Mary FL are as perplexed about this as we are. When the coach is stopped you can scroll between all three cameras as advertised. The minute the coach and trailer start moving down the road when you try to scroll between the cameras you get the dreaded blue screen with a "No Video Signal" message. You can continue to scroll and eventually you will get images from the three cameras. Interestingly if you don't scroll and leave the blue screen with it's accompanied "no Video Signal" message the minute you stop the coach you get an image from the camera that would have been selected in the scroll sequence. If you do not scroll you do not lose the image from the camera that was last used. By way of trouble shooting we have changed the connector plug on the trailer side only, the coach side seems good. Any thoughts would be much appreciated. Hopefully someone has seen a similar issue like this before. Cheers........JR