"ghost light" I can't turn off

[drmdzh]

When in Final Quality Renderworks, I am getting a pale blue/white ghost light showing up that I can't turn off. I only have ONE point light source turned on (in a fireplace) - which is casting a red/orange glow directionally over the set. But up on some beams, and top edges of walls, there is a pale blue light hitting from up right.

 

I have:

Environment lighting OFF

Ambient Lighting OFF

No other light sources (truned on and off classes to make sure of this)

No renderworks background.

 

When I place a huge wall to the right - it blocks this mysterious light and it no longer is seen on the scenery. This proves it's a light source and has direction. 

 

img 1 shows the light hitting

img 2 shows the set with the huge wall to the right.

 

But where is it coming from, and how do I turn it off?

 

thanks.

[VIRTUALENVIRONS]

Have you tried copying everything to a new file and seeing the problem persists.  

 

What happens if you purge all lights and then put the fireplace light back in.