When I was a kid, my CRT sometimes switched to a wrong resolution (it got narrower, so squares became slightly rectangular, for example). I say "my CRT", because that was a hardware, not software issue. I know, because kid-me solution was to smash the (hard, brick) wall with that CRT. And it worked. I still don't know why, I was too young to investigate - and hey it worked so why bother.

My parents were less impressed, when after a few years the screen was moved and the wall was scratched everywhere.