Aloha. Trying to diagnose a problem in my system that seems to be a 990 issue. Have had the unit now for ~ 2 months. First noticed the problem out of the box when using the OSD to my CRT tv, but didn't think much of it. Tonight I experimented with video switching for the first time and also experience the problem with video inputs. The specific problem is visible distortion of my tv whenever the subwoofer kicks in. My subwoofer is also new, the Axiom EP500. I've tried two different cable connections to the subwoofer, a balanced XLR (new from bluejeans) and also coaxial (but not at the same time of course). Distortion happens in either case, and also when I change the video cables between 990 and the CRT (component or composite). The distortion is similar in appearance to what happens to older tv's when a vacuum cleaner is close to the tv - frizzy white lines all over the place. Wondering if any other 990 owners have experienced similar problem, or someone might know the nature of the problem. Any help would be sincerely appreciated. I've contacted tech support, but want to make sure that I've ruled out all competing explanations...