vbo's = bad lighting

OpenGL OpenGL: Advanced Coding
1

okay, i have been using VBO’s and the lighting of my models is a shocker… incorect lighting.

so i tried rendering with glBegin(GL_TRIANGLES)
and it worked fine, so then i tried it with vertex arrays:
glDrawElements

and these also worked fine. so are VBO’s buggy? or maybe im using them wrong?

heres how i use them:
[cpp]
glEnableClientState( GL_VERTEX_ARRAY );
glEnableClientState( GL_INDEX_ARRAY );

		glBindBufferARB( GL_ARRAY_BUFFER_ARB, vboPositions );
		glVertexPointer( 3, GL_FLOAT, sizeof(Vector3), 0 );	
		
		if( normals != 0 )
		{
			glEnableClientState( GL_NORMAL_ARRAY );
			glBindBufferARB( GL_ARRAY_BUFFER_ARB, vboPositions );
			glNormalPointer( GL_FLOAT, sizeof(Vector3), 0 );
		}

		if( uvCoords != 0 )
		{
			glClientActiveTexture( GL_TEXTURE0_ARB );			
			glBindBufferARB( GL_ARRAY_BUFFER_ARB, vboTexCoords );
			glTexCoordPointer( 2, GL_FLOAT, sizeof(UVCoord), 0 );
			glEnableClientState( GL_TEXTURE_COORD_ARRAY );

			glActiveTextureARB( GL_TEXTURE0_ARB );
			glEnable(GL_TEXTURE_2D);
		}


		glBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, vboIndices );

		glDrawElements(GL_TRIANGLES, noIndices, GL_UNSIGNED_INT, 0);
						

		glBindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
		glBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );

		glDisableClientState( GL_NORMAL_ARRAY );

		glClientActiveTexture( GL_TEXTURE0_ARB );
		glBindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
		glDisableClientState( GL_TEXTURE_COORD_ARRAY );
		
		glClientActiveTexture( GL_TEXTURE1_ARB );
		glBindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
		glDisableClientState( GL_TEXTURE_COORD_ARRAY );
		
		glActiveTextureARB( GL_TEXTURE1_ARB );
		glDisable(GL_TEXTURE_2D);
		glActiveTextureARB( GL_TEXTURE0_ARB );
		glDisable(GL_COLOR_ARRAY);

[/cpp]

ideas? as i really wanna use vbo’s for rendering due to speed.

2 
if( normals != 0 )
  {
    glEnableClientState( GL_NORMAL_ARRAY );
    glBindBufferARB( GL_ARRAY_BUFFER_ARB, vboPositions );
    glNormalPointer( GL_FLOAT, sizeof(Vector3), 0 );
  }

i’m guessing you mean vboNormals or something instead of vboPositions?(or if you do have normals and positions in same vbo, you probably need to set the stride parameter to glVertexPointer/glNormalPointer differently, and need to set the offset param for whichever isn’t at the beginning of the struct)