The NR-900 is a nice receiver, and I haven't given up yet, but I'm very close to upgrading still. I finally got through to Onkyo today, what a pain, anyway once I got talking to them they were very helpful. After working with them for about 45 minutes we got everything working. It's a problem with their receiver and the subnet settings. For those familiar with networking, I use a class A 10 series address, and a class c subnet. The receiver allows you to change everything how you want, but for some reason it won't talk to my pc. If I use a class A network and subnet on both the receiver and network it worked. They told me that they would send the info to their engineering team in Japan. Anyway, playing MP3's from the PC to the receiver was cool, but the Internet radio feature was lame. There's a huge listing of stations, but only a few worked.
