Hello all

Lighting/shadow just pops in when I move forward, right in front my eyes. It also chances when I just move the camera left or right. This doesn't happen everywhere and seems to be more abundend when there are multiple light sources

In these screenshots you can clearly see what i mean.

http://i48.tinypic.com/24v1zdd.jpg
http://i48.tinypic.com/av0f1f.jpg
http://i48.tinypic.com/s5wlde.jpg

Does anyone know how to fix this?