Left-handed mouse setting not retained across reboot

I set the mouse orientation to "left-handed" and it works fine. But after reboot, mouse reverts to "right-handed" despite the fact that System Settings still shows it set to "left-handed". Clicking on "right-handed" setting then back to "left-handed" fixes it.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gnome-control-center 1:3.4.2-0ubuntu0.13.2
ProcVersionSignature: Ubuntu 3.2.0-61.93-generic 3.2.55
Uname: Linux 3.2.0-61-generic i686
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
Date: Thu May 22 08:32:21 2014
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to precise on 2012-10-22 (576 days ago)
usr_lib_gnome-control-center:
 activity-log-manager-control-center 0.9.4-0ubuntu3.2
 deja-dup 22.0-0ubuntu5
 gnome-bluetooth 3.2.2-0ubuntu5.1
 indicator-datetime 0.3.94-0ubuntu2