I'm having a little bit of an issue with my mac pro. I have been trying to hook it up to my Belkin router via ethernet without success. I have plugged the cable into both of the Mac Pro's LAN ports, but neither one has been able to successfully connect. In the Network System Preferences, it displays the message about having "a self-assigned IP address and may not be able to connect to Internet" message. However, every other machine I hook up to this cable gets on the net just fine. If I connect the Mac Pro directly to my cable modem, it gets on the net just fine. So both the router and the Mac Pro's ethernet work, just not together. I talked to Apple support a couple weeks back, and the guy didn't know what was up. He suggested it was a router problem -- but again, anything else I hook up to this cable (my old Power Mac, MBP, 360) works like a charm. Everything works fine connecting with Airport, so it's not a live-or-die situation right now. Just would like to see if anyone else has had this issue and resolved it.