I have a Benq pe7700 projector and have just got a centrestage cs1 scaler,it works brilliantly with ntsc 60hz feeds but it looks awful with pal 50hz feeds,the picture is there but it has subtle vertical stripes every inch or so,this is the same on any input from composite freeview to prog scan dvd,can anyone help please? You can change pal to 60hz which eliminates the problem but this can result in judder so it is not ideal.It also works okay with a Philips 963 dvd player with it set to 480p for any disc but I was hoping to use it with Sky. The scaler is fine as I have tried it on a Panasonic ae700 and there was no problem with pal or ntsc,but also I don't think their is anything wrong with the 7700,could it be an incompatibility issue between them? Would it make a difference if I tried 720p over component output instead of 720pRGB or Hdmi? Any help would be appreciated.