Are there script triggers on the Calendar layout?
Yes, the calendar layout has just one script trigger on it. There is an OnRecordLoad trigger that calls the script "Load Calendar Layout". =)
Can I turn script triggers off?
You can certainly turn off individual triggers by setting them not to operate in browse mode. This keeps the trigger tied to the object in case you want to turn it back on later. If you haven't done this before, check out the section on Script Triggers in FileMaker's built in Help.
Keep in mind that the script trigger that runs on the calendar layout is used to load the calendar so if this is turned off you can manually run the "Load Calendar Layout" script to get that showing up.
You can also temporarily disable triggers by setting the variable...
... to 1. Just be sure to set it back to "" or 0 when you're done. You can see an example of this in the script "Collapse Side Bar ( Action )"