Charlie,
Thnaks for you your help. You are correct. I am upgrading to a brand new machine, with brand new NICs. I'm surprised that this would be a problem after the upgrade. My understanding was that the upgrade didn't affect the hardware config. Regardless, I'll take a run at what you suggest. It rocks that linux provides the ability simply open another instance of the console. I knew about this from precious wanderings, but never thought of it in this situation. I'm used to Window where if the OS is screwed up your screwed. That's what I assumed here.
Mary,
As always, thanks very much for the additional info. You've been so helpful.
Even though it's been a rough ride so far, I have learned a lot, both from the folks on the forum and from the additional reading I've had to do. I was reasonably comfortable using SME to set up accounts, ibays, etc., but I knew nothing about the more technical side of admin. It's good to learn this stuff.