UV unwrapped gone wrong

Is there a general rule to this? When I unwrap a mesh in the UV editor, everything goes correctly, and in texture mode it looks great, but when I render it, the UV wrap is out of wack. Its still there, but not positioned correctly. Ive never had this problem before. Thanks.

Have you set the texture mapping to UV ?

Show us, post a link to your blend file and texture

Hmmm!. Perhaps changing the projection method from box to flat.

Thanks. Good advice. I already had both of those settings. I never found out what the problem was. I ended up just deleting the mesh and started over. I thought there may have been some kind of magic answer, as I tend to live in neverlland sometimes. Im working on a tutorial called March of the Wooden Soldiers and will post examples soon. Thanks again.