higher bitrate can cause similar problems, but I'm not sure if that's what's going on here, or how to check. Can anyone point me to the right direction to look? I found this blog of WUSA describing their setup, but it didn't give me a clue to anything unusual. http://www.streamingmedia.com/Articles/Editorial/Featured-Articles/Special-Delivery-High-Def-Video-65130.aspx Thanks Mary