FileVault normally asks to reclaim space before the computer sleeps, restarts, or shuts down. In some cases, you can lose some preference settings after space is reclaimed. Download and install Mac OS X 10.3.1 or later to avoid this issue. It is available in Software Update preferences, or from the
Apple Featured Software webpage.
FileVault can be turned on or off in the Security or Accounts preferences. Turning off FileVault and/or installing Mac OS X 10.3.1 does not automatically recover lost settings. You should configure any incorrect preference settings after installing the update.
Important: If you force the computer to restart while disk space is being reclaimed, data loss can occur. The same is true if power is lost during the process. Mac OS X 10.3.1 does not address this type of data loss.