Im trying to screenshot through Steam (F12) but is not working.

I would like to ask for some assistance. I downloaded graphic mods i did as i told in the guide but the game doesnt open there is no tab that the game is running it's like i didnt even open it. Is there a fix to this?

Anybody know how to fix this weird white mark on black screen transitions? Driving me up the wall. https://imgur.com/a/mr-bean-intro-lookin-IxzNlhU

One of my least favorite things about GTA3 is how hazardous it gets to actually explore its world because gang members just start shooting at you on sight. Was there ever a mod that attempted to calm them down? It would've been a nice reward after The Exchange at least....

Guys anyone know where I can find GTA 3 Retail without trojans and viruses?