[Help] Certain models engulfed by a blinding, white light.

[TOTSUGEKI]

I decided to try my hand at SFM.
I got around to getting all my source games into SFM, but certain models not only appear slightly transparent while in the model selector-viewer screen, but produce a blinding light (http://i.imgur.com/xQZH1A4.png).
Disabling lighting seems to fix it, but I love lights.
Any ideas?

[Pte Jack]

try the command buildcubemap in console