Just a quick addition, you dont actually need the trigger zone here.
Im not sure how your coding the script but in simple terms
Id use the pickobject commands to make sure the player is looking
at the laptop, then using a plrusingaction or scancodekeypressed command to display the image of the email, with another key press
check to undisplay the image, you could have checks to cycle through pages etc and then allow the player to pick up the laptop giving them
the new ability to be able to read and receive emails on the move?
All this would be done through the entities main.fpi not requiring a triggerzone or a need to activate or deactivate said triggerzone completely
My main advice is always whenever you have a working script, dont just be happy that it works, always look at it again and think 'how can I do this quicker, simpler and in less lines of code'
less code, the less to go wrong
smoke em if you got em