Now it does look like a network problem. I ran the installer again, today, no changes. The update download was really slow, but it worked and the installer completed it's job. This is a nice scanner (it finds infected files in my Windows XP partition!!).
Thank you
Ohh, another dumb thing I forgot. I already did this with 'Ibex, too!
If you open the f-prot.conf file and set the value FPUPDATE_LOGLEVEL="7", the terminal screen will give you feedback about what the updater is doing. At the default of 3, the updater logs the stuff elsewhere (giving you no screen feedback on a network or other problem). I find setting the value to 7 handiest.