# lighted, multi-colored polys

I know this should be an easy one and the answer must be docummented some-
where but I can't find it. Please Help!
I want to draw smooth (GOURAUD) shaded lighted polygons starting with
different colors at each vertex. Assuming the lighting model is setup
correct (which it seems to be), if I do something like
call SHADEM (GOURAU)
call BGNPOL
do 10 i = 1,N
vn(1) = XN(i)
vn(2) = YN(i)
vn(3) = ZN(i)
call N3F (vn)
icv(1) = IRED(i)
icv(2) = IGREEN(i)
icv(3) = IBLUE(i)
call C3I (icv)
v(1) = X(i)
v(2) = Y(i)
v(3) = Z(i)
call V3F (v)
10 continue
call ENDPOL
I get smooth shaded colored polygons but no lighting effects. If I reverse the
order:
call SHADEM (GOURAU)
call BGNPOL
do 10 i = 1,N
icv(1) = IRED(i)
icv(2) = IGREEN(i)
icv(3) = IBLUE(i)
call C3I (icv)
vn(1) = XN(i)
vn(2) = YN(i)
vn(3) = ZN(i)
call N3F (vn)
v(1) = X(i)
v(2) = Y(i)
v(3) = Z(i)
call V3F (v)
10 continue
call ENDPOL
I get a nicely lit surface but all gray shaded.
What's the trick? (or am I way off base).
Thank's.