triangles in quad being unwrpapped being processed separately

hallo, I do not understand why while unwrapping do I get this strange edge in my model…when I unwrap
face and twiggle the vertices it ends up like this


thanx for advise, cheers"

it looks like you may have moved one of the UV coordinates ( vertexes ) after unwrapping.

Hallo, Modron,
not quite true,
all I did was turn the unwrapped vertexes as it is clear in the image. In the right (3dwindow) there is the original mesh, and in the right side, there is the unwrapped and turned mesh(UV/Image Editor)
But that I am sure is nothing against normal procedure, because that is what its for, isnt it?
Thanx


http://www.infoocean.info/avatar3.jpgall I did was turn the unwrapped vertexes as it is clear in the image.

ah, you manipulated your mesh after you UV mapped it. you will have to unwrap it again, unfortunately.

No I have not touched the original mesh, only the unwrapped vertexes!