Unwanted Explicit variables set to true?

[Malte Brill]

Hi David,

check your preferences. Maybe you accidently checked "Variable  
checking by default" in the script editor pane? Prefs are preserved  
cross versions since 2.7.x so this might be the cause. This setting  
is not exactly the same as setting the explicit vars. You might want  
to check uncheck it once even if it appears unchecked.

Hope that helps,

Malte