When I tried to launch sawfish-capplet, it failed, leaving something about an invalid file or directory \'sawfish/client\' in the X error log.
- Install rep-gtk and sawfish RPMs built for i586 to an i686.
- In my case librep-0.13.6-alt1 was built for i686.
- Try to launch sawfish-capplet from the GNOME Control Center.
Workaround: Either rebuild all the mentioned packets domestically, for the same architecture they will run on, or make a symbolic link from /usr/lib/rep/i686-alt-linux to /usr/lib/rep/i586-mandrake-linux.