If somebody can answer about this bug...

[White Owl]

I've occasionally seen those lines outlining a box, but not quite as distinct as in your screenshot. Same graphics card. I'll try that change, thanks.

[senseispcc]

Originally Posted by White Owl

I've occasionally seen those lines outlining a box, but not quite as distinct as in your screenshot. Same graphics card. I'll try that change, thanks.

The map on this game is made out by many squares and what you experience is the boder of one of this squares visible because a glitch in the video renderinng.