This morning I noticed that the signals on 1 cable to the ITMx looked funny.  Richard power cycled the AA chassis which didn't work, so I investigated the cabling at the satellite box.  Indeed, the cable I suspected seemed easy to pop off the box, likely causing the glitching we had observed (although .  I reseated it and then screwed in all connectors that were loose on all 5 ITMx sat box.  Phew - that was an easy one.  Currently, the ITMx filter text file is a mess so Arnaud is working on it.