Lost Phishing Protection Toolbar in Safari 4 for Mac

I ran my routine Live Update last evening and a downloaded update required a restart.  Upon restarting, I have lost the Phishing Protection Toolbar in Safari 4 for Mac.  I opened the Norton Confidential app and the toolbar option is appropriately checked.  I unchecked the toolbar option, restarted the machine, then again rechecked the box without the toolbar appearing.  I restarted the Mac again, and despite the toolbar option appropriately checked, the toolbar remains gone.  The Confidential app reports everything enabled.  Any help would be appreciated.