'universal access preferences' crashes and/or causes unity freeze

[BlessJah]

Steps to reproduce:
1. Make accesibility icon appear in tray (it appears after opening 'System Settings' -> 'Universal Access').
2. Click on that icon and open 'Universal Access Preferences' window.
3. Marking 'Make text larger and easier to read' checkbox causes crash.
With my current configuration it is the only available checkbox.

After clicking that checkbox windows titlebars and some other parts of screen containing text seem to redraw, after that 'Universal Access Preferences' window: disappears (offering me to send bug report) OR freezes OR makes unity freeze (freeze occured only once, after several earlier crashes).

Sometimes it doesn't crash (but still it doesn't "make text larger and easier to read").

Options 'Text size' and 'Contrast' in 'System Settings' -> 'Universal Access' works fine.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gnome-settings-daemon 3.4.2-0ubuntu0.2
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic x86_64
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
Date: Tue Aug 7 03:46:20 2012
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-settings-daemon
UpgradeStatus: No upgrade log present (probably fresh install)