.Map :: MoHAA Mapping

I made a road with Patch mesh but, at the connections i can see whites lignes. The pieces are right connected so, do you guys now what that could be and is it possible to connect those pieces like Lod-Terrain?

Here is a picture:
http://www.dodstudios.net/uploads/uploads/shot0232.jpg

Thanks,

first, double check in radient to see if maybe one of the vertices is off a bit

-do this by selecting both meshes and pressing v

then, if there is nothing unaligned, just make a brush with a similar texture and add it behind the crack

hope that helps