@DiegobhWell isn't it already compatible ?
Anyway there is nothing I can do in this script to make it more compatible, that's the others scripts that need to be modified. :/
Unfortunately you're out of luck here. Due to the way RM handles data input, the mouse scripts have to be fit to the screen resolution and become more or less random devices if the resolution isn't one that was originally programmed in.
The following is a simplification (so please no comments from scripters who know the true facts please), but basically the mouse doesn't know any buttons, and the game knows nothing but the buttons. The mouse script only has the coordinates of the pointer and has to check which button is there on which screen, and then tell RM "I pressed this button". But the mapping of coordinates to button position needs to be done on the mouse script, and resizing the screen distorts that mapping completely...