Playing Full SBS in Total media theater

Hello Everyone, I have an issue with total media theater 5. When I play full sbs movies in mkv format, total media theater adds additional borders onto the movie (And I do mean full sbs 3840x1080). So I have the original letterbox borders plus additional borders as well. Only top and bottom borders, not the sides. I do not have this issue when playing 3d bluray isos or half sbs movies and they play just fine. I also have powerdvd 12 and the full sbs movies play normal but I prefer using total media theater. Anyone know if there is a setting that can be changed or if this is a known issue? I know full sbs movies are not that common but I was hoping that I would find someone that has experience with them. And by the way, changing the aspect ratio within the program does not help unless I want to watch the movie cropped. Thanks