[Help] GTKRadiant LightMap

[Sephirothxx]

I have gotten lightmapped maps to work before, but hey were other people's, like Darker. I made a map, and put a few lights in it, but when i build it lighted, it works, but screws up when it's played ingame. Is there some extra thing you have to do to get lightmapping to work? The lights are very very dim even though they are at values like 7000, and there are random boxes of darkness or shadow out of nowhere for no reason, and some surfaces dont do basic things like brighten up/flash when you fire a gun near them. What did I do wrong?

EDIT: Also, what does Caulk do?

[MentaL]

[Sephirothxx]

Bump...18 views? Please guys I need help...This always happens.

[CrewSader]

Caulk makes things invisible, to reduce lag.