My TV only supports 1080i mode and I've setup X9S's HDMI output to 1080i 60Hz. The HDMI output is ok when playing 1080P( or up) videos. But HDMI output switches to 1080P mode automatically while playing 720P videos. This makes the TV displays terrible video. Any suggestion? Thanks! Sorry, I've move this thread to X9S forum. Please ignore this.