I have a Quad class I created and it works...mostly.  I want it to be textured, but it seems to use the texture of the last object rendered, my sky sphere.  I tried posting the code, but that didn't come out right.

 Basically what I'm doing is, create an array of VertexPositionNormalTexture with 6 elements.  I set all the points, UV coordinates, and normals.  This is used to represent the ground so the normal points up.  In Draw() I use DrawUserPrimitives.  Before drawing I set the Texture property on the BasicEffect to the texture I want to use.  It seems to use the sky sphere texture.  What am I doing wrong?  I have had a hard time finding anything that uses the BasicEffect with a textured quad.