When I click to turn web security off, the indicator changes to off, but when I go back to the home screen it still shows that I have Internet protection. I go back to the internet protection page and it's back on again. Is there a trick to making it stay off?

Firefox 8
ZoneAlarm Security Suite version: 10.0.250.000
vsmon version: 10.0.250.000
Driver version: 10.0.250.000
Anti-virus engine version: 8.1.8.79
Anti-virus signature DAT file version: 1064255744