Tried that too. No luck
Moving this discussion to the Camera RAW forum.
You may want to review the installation logs related to this update. You can locate the log file specific to this update by following the directions listed in Troubleshoot with install logs | CS5, CS5.5, CS6 - http://helpx.adobe.com/creative-suite/kb/troubleshoot-install-logs-cs5-cs5.html. The relevant log file will have the name of this update applied to it.