Weird Lighting Build

Probably a very noob question but i’m inexperienced in lighting.
I have a point light using a IEH profile. The point light is static and the shape of the ieh profile becomes disfigured after a Light Build! ![alt text][1]

The screenshots of before and after are attached

Hi. It looks like your lightmap resolution is too low, try to increase this value in Static Mesh Settings. It seemed to me that you are using brushes. Try to avoid BSP geometry, because it’s very performance costly and not suitable for building lighting