Hey, guys,how is it going?

I wanted to ask you for help because I am completely useless with computers and the like (as my user name proves...) and the thing is that I bought the four games of Monkey Island, but I don't know how to set the two first to have the original look (pixel art).

Can anyone give me a clue on this on? Thanks!!!

I played those a long time ago. So if I remember correctly:

The Secret of Monkey Island: press "F10" in-game.
Monkey Island: LeChuck's Revenge: press "F1" in-game.