The fix for this bug, as well as the same fix needed for ubiquity- hooks/30accessibility can be pulled from the below bzr branch:
http://bazaar.launchpad.net/~themuso/casper/a11y -- Magnifier does not start from accessibility menu due to incorrectly referenced file. https://launchpad.net/bugs/91868 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs