Scrolling Textures

Im trying to make a texture scroll across a textured quad but its not moving. The quad's FVF is (D3DFVF_XYZRHW|D3DFVF_DIFFUSE|D3DFVF_TEX1) (the quad is in 2d for a menu background). Will this work with this vertex format? I have this working on 3d models but cant get this working no matter what I try. I was wondering if its the vertex format thats stopping me? Any other ideas if this isn't the case? I'm sure there is something I'm missing. This is the code I'm using:

//m_ScrollTrans is a global D3DVECTOR

//m_Scrollspeed is a global float 

//Matrix4x4To3x3 converts a 4x4 matrix to a 3x3 (this has been tested and works)


D3DXMATRIX matTrans;
    m_ScrollTrans.x -= m_ScrollSpeed * g_timerdiff;
    m_ScrollTrans.y -= m_ScrollSpeed * g_timerdiff;
    D3DXMatrixTranslation(&matTrans, m_ScrollTrans.x, m_ScrollTrans.y, 0.0f);
    Matrix4x4To3x3(&matTrans, &matTrans);
   g_pD3DDevice->SetTransform( D3DTS_TEXTURE0, &matTrans);
    g_pD3DDevice->SetTextureStageState( 0, D3DTSS_TEXTURETRANSFORMFLAGS, D3DTTFF_COUNT2);
    //Render the scrolling texture

    g_pD3DDevice->SetStreamSource(0, m_ScrollVB, sizeof(C2DVertex));
    g_pD3DDevice->SetTexture(0, m_ScrollTexture);
    g_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP,0,2);

Any help is greatly appreciated, Harley. BreakoutX [edited by - klown9 on December 1, 2003 4:12:25 AM]