Hello,
Not sure if this is a bug or not - If it belongs in the wishlist thread, I will put it there...
I have noticed that it is very easy to turn of the simple settings for the shields. (Things like the check box for the webshield that says 'Scan web (HTTP) traffic')
It is possible to simply uncheck the setting by moving just off of the settings button to the right. I have often accidentally unchecked these settings in the process of just re-activating the window...

So, personally, I feel this is a potential risk for users and should be changed. (If possible)
Maybe make it so that it is only changeable by clicking on the check box itself?
-Scott-
EDIT: Solved in pre-release version: 5.0.460
