Travis, Hey there, how's it going? Long time no talk! Here's the deal.....neither ProTools NOR Venue should be the master clock when you're connecting to an HD system for live worship, IMHO. Digi assumes you will always run both together which, obviously, isn't the case. IMHO, I would not allow the BigBen to be the master house video sync---instead, use video sync from your video room from an actual master sync box. I have the SyncIO (key here) running 24/7 locked to house sync where ProTools is seeing running timecode at all times. The SyncI/O is not the master clock, but it is sending (passing) word clock through to my BigBen---from there, I'm clocking the VENUE console, a 96IO in the studio and a few other devices. EVERYTHING, including Venue, is a clock slave. If you're not able to select anything other than internal--you probably need to do a complete re-install. This happened to me and it was frustrating, that was the only thing that worked. That's also the only option if you need to install MachineControl, grrrrr! Please elaborate more on your setup and how it's wired. Which cards are your I/O and Venue on?