I'm just guessing that there must be something different in the processor of a portable machine. But truthfully, I have no idea. I've coded it on a Windows PC (desktop), seems to work on most Windows desktops and laptops, but I have absolutely zero knowledge about why it would or wouldn't work on one machine vs. another. Sorry, man.
Viewing post in Caverns of Xaskazien II comments
Hello. I think he said his vertical max was 720, but you are looking for 768. Maybe there is a way to give an option for a lower resolution or something.
Anyway this is a random question but is there a way to donate to this game or buy it or something? For example if someone is requesting a new graphics mode or something, maybe they could buy you a coffee or something at least.