I posted too soon about the new Webcam. It worked great until I logged off and back on again. Then it stopped working. The problem appears to be with the drivers on the host computer.
I'll write more later. I've given up an hour of my life because of this stupid thing. I sincerely hope I'll have the cam working in the next few minutes.
Update, 17:26 UTC: It wasn't the camera. It was (a) a Belkin USB extension cord or (b) Windows 2000 Server. One of the two did not play well with the Webcam. I can't believe how long this simple thing has taken me.
Update, 17:44 UTC: OK. Got the camera working (temporarily) on an old Windows XP box. Also got the Lab Cam (below) running, but I haven't given it a home on the Website yet. That will have to come later. Right now, I have a server to build for a client.
And, apparently, a parking ticket. Dang.
The Lab Cam (live image, updated every 5 minutes):