Two other clues:
1. Running pulseaudio -C and doing "list-modules" shows that module-native-protocol-tcp is not installed.
2. Also in pulseaudio -C, "list-clients" does NOT show paprefs when paprefs is running.
Two other clues:
1. Running pulseaudio -C and doing "list-modules" shows that module- native- protocol- tcp is not installed.
2. Also in pulseaudio -C, "list-clients" does NOT show paprefs when paprefs is running.