Fullscreen keeps when you change window

Hi. When I am in Fullscreen mode and change to another program (like Alt+tab o pressing Windows and choose a program), the comic keeps showing on the screen. I have to exit Fullscreen mode in order to go to another program. I mean, it's not like now the YAC is unusable, but it's a little annoying.

I'll look into it, I had to change a few things to fix full screen mode in Windows and those changes can have secondary effects...