Lights those doesn't affect to the ground

Regarding the Gile[s] flag, I had this same problem a long time ago with Quill3D and found a solution, I hope it works for you! ;)

Here is the code to remove EntityFX from a mesh...

For s=1 To CountSurfaces(mymesh)
br=GetSurfaceBrush(GetSurface(mymesh,s))
BrushFX br,0
PaintSurface GetSurface(mymesh,s),br
FreeBrush br
Next

from this thread...

http://www.blitzbasic.com/Community/posts.php?topic=26120&hl=fullbright