I've got a Vista Media Center set up which is connected to three XBox 360s as extenders.  On two of the XBox 360s my live TV and recorded TV plays just fine.  But on the newest XBox 360 video and audio playback stutters and pixelates when watching TV.  All three XBox 360s are on the same Gigabit switch. 

I disconnected this XBox 360 as an extender and reconnected it but am still getting this same problem.

I've upated my NIC card with the latest October 2008 update from Intel.

Anyone have any suggestions?

Thanks!