OK, the patient has survived the brain transplant, and I loaded Windows XP Pro and Norton Anti Virus and Norton Internet Security 2005. I couldn't get my ethernet card to work, so I used wireless to download the updates I needed for Windows and Norton, and also the driver that I thought I needed from hp.com for the ethernet card.
Cool! I took it to work to install yet more software that I needed, and the ethernet card worked. But when I got home, the ethernet card still didn't work with my DSL. I know my DSL and modem are fine, because they work for my other PC. But when I try to use them on my HP, it can see the connection and send out packets but it said "firewalled" and no packets came in. So I turned off my Norton firewall and I turned off my Windows firewall and it still didn't work. The only thing I didn't try was rebooting after I turned off my Windows firewall. Maybe when I first brought up Norton I might have accidentally hit "prohibit always" when my home DSL network came up, and I don't know how to change it back.
And, you guessed it! My HP is home and I'm not. I'm trying to think now of what I can try quickly when I get home. I'll be home about 8 hours between this biz trip and my SJU trip. Same thing between SJU and my next biz trip, and about 4 hours between that biz trip and my trip to OGG... I could probably have someone go to my house and test something if I had an idea what to change. Any ideas?