Hi 3_of_8,

I am sorry for not aswering anymore. But I guess I cannot help you any further here, because I am no OpenGL guy. I don't know the renderstates of OpenGL or what they do.

In general I would use a bitmap for fire, no GLQuads. I made fire effects a thousand times in DirectX and never had any problems with it using ADD effect or only Alpha for transparency. Don't know how people do fireeffects in OpenGL, but I cannot imagine that you are the first person with those "problems"