Problem getting polygons to draw

I''m having a problem getting polygons to draw when I switch to surface normals instead of RHW. #define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZRHW|D3DFVF_TEX1|D3DFVF_DIFFUSE) #define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_TEX1|D3DFVF_DIFFUSE|D3DFVF_NORMAL) Originally, I used the first constant as my FVF with RHW always set to 1.0f for each vertex; and all my polygons would draw. The problem is, they''d never take on lighting what-so-ever. So I get functioning vertex normals calculated (as best I can tell it funcions anyway), and I switch to the 2nd constant because you can''t mix D3DFVF_XYZRHW with D3DFVF_NORMAL. I store the normals in the proper place, but polygons don''t draw any more at all. I even turned off culling and the z-buffer, but not so much as a pixel is being drawn. Does anyone have any idea what the problem is and why is it happening? Any clues? All the x/y/z coordinates of the vertices are positive 0-based integers relative to the top-left corner of the screen. Thanks in advance, -- Dan