Also broken for me in 11.10.
According to strace paprefs is looking for modules in
/usr/lib/pulse-1.0.0
when it should be looking in
/usr/lib/pulse-1.0
Creating a symlink fixes it for now.
sudo ln -s /usr/lib/pulse-1.0/ /usr/lib/pulse-1.0.0
Also broken for me in 11.10.
According to strace paprefs is looking for modules in
/usr/lib/ pulse-1. 0.0
when it should be looking in
/usr/lib/pulse-1.0
Creating a symlink fixes it for now.
sudo ln -s /usr/lib/pulse-1.0/ /usr/lib/ pulse-1. 0.0