Dear all I've read with interest in other posts about the difficulties in getting to grips with the Optoma H56 and the progressive mode. I have an H56A and last night I tried to get the image right using the RCA to DVI cable provided from the component output of my Sony 765 to the DVI input of the PJ. After a lot of adjustments I am starting to get the image right , but sometimes (not always) there are horizontal lines that move up and down the screen, like an interference . I've played with the signal and frequency settings but I can't get rid of them. Can anyone help, please?