We've noticed a problem with our UpDownCross we've been using. We're converting from 525i to 1080i, and we're seeing what looks almost like the video is strobing on the output of the UpDownCross. I've confirmed the video coming in is good, but for some reason the output is strobing. Switching to 720p output, the video is looking good. We're running the most recent firmware (1.8.2) Any help would be appreciated.