Hi Skyblazer,

I'm having the same problem with my center channel. I actually sent the 990 in for service, and the outlaws found nothing wrong with it. They say a bad amp channel would not exhibit this behaviour. All they tell me to do is reinstall the software. I'm still having problems. I have a thread from 11/27 that discusses my issues:

http://ubb.outlawaudio.com/ubb/ultimatebb.php?/ubb/get_topic/f/34/t/001028.html

Edited to say that I spoke with Outlaw about my issue, and we're trying to work it out.