Hello I am new to the RR world and I have a 2006 range rover sport supercharged with the in dash DVD player, headrest screens and the DVD disc changer in the rear of the vehicle. When I am in park the headrests show the video, when I put the vehicle in drive the headrests will continue to display the movie, however when in park the in dash DVD will not display the movie, it just shows a black screen, when put the vehicle in drive the screen changes to screen shut off while vehicle is in motion, when placed back in park the screen goes back to a black screen. Nomatter what I do I cannot get the movie to come up on the in dash screen. Has anyone ever seen this problem and what did they do to remedy the concern?