sawfish-ui does not do anything

"sawfish-ui" brings up a window that just sits there. Clicking on "Matched Windows" or any of the other configuration categories has no effect. The "rep" process that runs the UI uses about 80% CPU and brings Xorg up to 40% CPU, before trying to click on anything (and also post-click). The "Close" button responds, however, as expected.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: sawfish 1:1.5.3-2
ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
Uname: Linux 3.0.0-15-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Thu Feb 2 21:13:34 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LC_TIME=en_DK.UTF-8
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/zsh
SourcePackage: sawfish
UpgradeStatus: Upgraded to oneiric on 2012-01-10 (23 days ago)