Mark,

I've never seen anything like this before, so I suspect that there is something a bit wierd with your set up. Lets just hope its to do with windows and not a hardware thing somewhere on your network.

If you haven't rebuilt yet, the other thing you could try is changing the send-method in trio.xml to "tcp". This uses TCP/IP rather than UDP to send the music. It's not as stable as the UDP code though, but maybe its worth a try.

Cheers
Paul