Setup my SB350 after moving today, and I'm not getting a video feed on my computer (El Capitan) or my iPad. The Motorola DCT700 cable box supplies audio and video to the TV when connected directly to the TV via Coax, and/or when the signals are passed through the 350. Computer and iPad get audio just fine. All cables are connected appropriately. I've worked through all the troubleshooting info on the support page. Any help is appreciated, thanks!