Windowed Mode Wonkyness

[Sepharius]

Hmmm, all I see in those screenshots is a large square portion where it looks like someone cut it out of the picture. O_o

Not really seeing anything about those triangles you were talking about in your first post. I assume this has something to do with your computer (could also be your client), so best thing to do is make sure everything is up to date. Hard to help you with this since I've never encountered it before. >.<