I don't even remember starting this thread, and in the last few days I completely agree with Tacit, re: "Troubleshooting forums are incredibly valuable sources of information even for people who aren't members. I know I've solved many computer problems by doing a Google search and finding some forum somewhere I had never heard of where some user had the exact same problem I did, and someone else posted a solution."

My recent usb>ethernet thing a case in point. Solved now, but from another Mac forum.