terrain texture problem (L3DT)

Does anyone have any experience with L3DT? I successfully imported the heightmap and applied it to the terrain. And I imported the texture map as a jpg image. but when i apply the texture to the terrain it is applied to the terrain in the form of tiles (like any other texture) but it only has to applied to it once. what should i do?

Change the size of the texture until it tiles over the terrain once.