Yeah, I was wondering if we finished our conversation about Media Center
A Marantz mono-block nowadays can set you back $6,000.00
I really think it pertains to the audio and TV card drivers.
When they get off their as and start writing drivers I think it will be fine.
You could alway shoot them of a e-mail and ask about windows support in the future.
Ahhhh, Audiophile speak... shame you're using a digital source.