I am using ZoneAlarm's (ZASS 8.0.298) Junk Mail Filter. It comes up and appears to be working just fine.
However, I can't see the toolbar. And it is NOT listed in the View Toolbars menu.
Sometimes, but not always, it will reappear if I shut down Outlook (Outlook 2007 with all patches & updates) and restart it. Even when it is visible it DOES NOT appear in the View Toolbars menu.