You need to make sure you're running the RAD tool, which takes care of lighting, you also may have a leak, which would compile your map in Fullbright, where everything is lit teh same.
To solve both of these, get Batch Compiler with ZHLT compile tools, from Nem's website, or go to our (oops lol) TWHL's Links page.
And check teh tutorials on compiling.
If none of that applies, you should be made aware that if you have too many different styles of lights (more than 3 point based entity lights) your map won't compile properly.
It's an error of too many direct light styles on one face.
This means you need betetr RAD blocking, less Bounce, or use Texture lights.
In fact, I'd suggest using Texture lights asap.