Weird mirrored screen

Well i bought a new computer and wanted to test out RotMG since i had nothing to do,
i noticed that when i play the game i get weird things like this and not only in loading screen

Any idea how to fix it?

http :// prnt.sc / b5mrwt

I only got this while loading screen and not while in realm or nexus, maybe a picture hoe it looks while in nexus or a realm?

Happens to me... Just deal with it.