Distortion of characters and mobs

[Riblah]

I cannot figure out how to get characters and mobs to look normal like their supposed to. There are lines that project far outside of the bounds of the characters. I've reformatted, reinstalled, ensured I have all the appropriate drivers installed. I cannot think what else may be causing this issue. Any help would be greatly appreciated.

It makes the EC tunnel hell to navigate.

See screenshots for examples please.