Mgcamd and open pli 4.0 ?


i have loaded Mgcamd 138ssl from open pli 4 image and been to the Mgcamd configs using DCC and edited attributes to 755 . Also i have two mg cfg files in the usr/keys folder , should there be two ? and what "box number " should i set them both to for the DM 500HD ? as i have tried various settings but cant get a channel to clear . I have also name of the newcamd.list and removed "example " from the end . am i doing the right things , as this is what i have read that i must do ? thanks for any help .