I appreciate your reply, Raze

Yes, that's what I meant, the light effect around my character. So the light effect doesn't increase but I'll be able to see enemies further away outside of the light effect, that's awesome. I'll try changing the light radius as you said.
The fog of war effect is the pure black unexplored areas of the screen, right? So the Elven Sight skill affects the fog of war? That's good to know, because I won't increase it as much, to keep track of exploration just as you said.
I feel much better knowing my game isn't bugged. Thank for your reply!